Light: Reflection And Refraction MCQ | Class 10 Science Chapter 10

Light Reflection And Refraction MCQ

Below are some of the very important NCERT MCQ Questions of Light Reflection And Refraction Class 10 Science Chapter 10 with Answers. These Light Reflection And Refraction MCQ have been prepared by expert teachers and subject experts based on the latest syllabus and pattern of term 1 and term 2. We have given these Light Reflection And Refraction MCQ Class 10 Science Questions with Answers to help students understand the concept.

MCQ Questions for Class 10 Science Chapter 10 are very important for the latest CBSE term 1 and term 2 pattern. These MCQs are very important for students who want to score high in CBSE Board.

We have put together these NCERT  Questions of Light Reflection And Refraction  MCQ for Class 10 Science Chapter 10 with Answers for the practice on a regular basis to score high in exams. Refer to these MCQs Questions with Answers here along with a detailed explanation.

Light reflection and refraction mcq

MCQ 1-25

1. Study the given ray diagrams and select the correct statement from the following

Light Reflection And Refraction MCQ

(a) Device X is a concave mirror and device Y is a convex lens, whose focal lengths are 20 cm and 25 cm respectively.
(b) Device X is a convex lens and device Y is a concave mirror, whose focal lengths are 10 cm and 25 cm respectively.
(c) Device X is a concave lens and device Y is a convex mirror, whose focal lengths are 20 cm and 25 cm respectively.
(d) Device X is a convex lens and device Y is a concave mirror, whose focal lengths are 20 cm and 25 cm respectively.

2. A student obtains a blurred image of a distant object on a screen using a convex lens. To obtain a distinct image on the screen he should move the lens

(a) away from the screen
(b) towards the screen
(c) to a position very far away from the screen
(d) either towards or away from the screen depending upon the position of the object.

3. Suppose you have focussed on a screen the image of candle flame placed at the farthest end of the laboratory table using a convex lens. If your teacher suggests you to focus the parallel rays of the sun, reaching your laboratory table, on the same screen, what you are expected to do is to move the  

(a) lens slightly towards the screen
(b) lens slightly away from the screen
(c) lens slightly towards the sun
(d) lens and screen both towards the sun

4. Rays from the sun converge at a point 15 cm in front of a concave mirror. Where should an object be placed so that the size of its image is equal to the size of the object? 

(a) 15 cm in front of the mirror
(b) 30 cm in front of the mirror
(c) between 15 cm and 30 cm in front of the mirror
(d) more than 30 cm in front of the mirror

5. What is not a characteristic of a rear view mirror in a car?

(a) Convex in nature
(b) Concave in nature
(c) have wider field of coverage
(d) give a virtual image

6. Which of the following statement is incorrect ?

(a) The bending of a ray of light on paging from different media to one called reflection
(b) phenomenon of splitting of white light into seven colours is known as the dispersion of light
(c) Refractive index of medium depends upon its temperature
(d) Refractive index is directly proportional to the density of the medium

7. A piece of red cloth when suitably illuminated may look black, but a piece of black cloth will never appear red. This phenomenon occurs because

(a) Black cloth reflects only black light
(b) Black absorbs all the colours
(c) Black cloth reflects all colours
(d) Red cloth reflects all colours

8. Consider four mediums P, Q, R and S whose refractive indices are 2.14, 1.99, 2.98, and 2.16 respectively. Assume that light travels from one medium to another. The rate of change will be utmost in which medium.

(a) P to Q
(b) Q to R
(c) R to S
(d) S to P

9. The refractive index (n) of a colourless, volatile, nonpolar solvent is 1.24 to the refractive index of a solid ice cube. The unmitigated refractive index of the ice cube is 1.31. Enumerate the unmitigated refractive index of the non-polar solvent. 

(a) 1.6522
(b) 1.3241
(c) 1.6244
(d) 1.2401

10. Which of the following mirrors is used by a dentist to examine a small cavity?

(a) Convex mirror
(b) Plane mirror
(c) Concave mirror
(d) Combination of convex and concave mirror

11. When light falls on a smooth polished surface, most of it?

(a) is reflected in the same direction
(b) is reflected in different direction
(c) is scattered
(d) is refracted into the second medium

12. A student very cautiously traces the path of a ray through a glass slab for different values of the angle of incidence. He then measures the corresponding values of the angle of refraction and the angle of emergence for every value of the angle of incidence. On analysing these measurements of angles, his conclusion would be

(a) ∠i > ∠r > ∠e
(b) ∠i = ∠e > ∠r
(c) ∠i < ∠r < ∠e
(d) ∠i = ∠e < ∠r

13. Three students A, B and C focussed a distant building on a screen with the help of a concave mirror. To determine focal length of the concave mirror they measured the distances as given below

Student A : From mirror to the screen
Student B : From building to the screen
Student C : From building to the mirror

Who measured the focal length correctly?

(a) Only A
(b) only B
(c) A and B
(d) Band C

14. If you focus the image of a distant object, whose shape is given below, on a screen using a convex lens.

The shape of the image of this object on the screen would be :

Light Reflection And Refraction MCQ

15. A student is performing the experiment of determining the focal length of a given concave mirror by focussing a distant tree on a screen. Which one of the following kinds of images he is likely to obtain on the screen ?

Light Reflection And Refraction MCQ

(a) (A)
(b) (B)
(c) (C)
(d) (D)

16. A student has focussed on the screen of a distant building using a convex lens. If he has selected a blue coloured building as object, select from the following options the one which gives the correct characteristics of the image formed on the screen.

(a) Virtual, erect, diminished and green shade
(b) Real, inverted, diminished and in violet shade
(c) Real, inverted, diminished and in blue shade
(d) Virtual, inverted, diminished and in blue shade

Click Below To Learn Social Science Term-1 Syllabus Chapterwise MCQs

17. A light ray enters from medium A to medium B as shown in figure, The refractive index of medium B relative to A will be:  

Light Reflection And Refraction MCQ

(a) greater than unity
(b) less than unity
(c) equal to unity
(d) zero

18. An optical device has been given to a student and he determines its focal length by focusing the image of the sun on a screen placed 24 cm from the device on the same side as the gun. Select the correct statement about the device.

(a) Convex mirror of focal length 12 cm
(b) Convex lens of focal length 24 cm
(c) Concave mirror of focal length 24 cm
(d) Convex lens Of focal length 12 cm

19. Select from the following the best experimental getup for tracing the path of a ray of light through a glass slab   

Light Reflection And Refraction MCQ

20. When you focus the image of a distant flag, whose shape is given below, on a screen using a convex lens, the shape of the image as it appears on the screen is

Light Reflection And Refraction MCQ

21. A student determines the focal length of a device ‘X’ by focusing the image of a distant object on a screen placed 20 cm from the device on the same side as the object.  

The device ‘X’ is:

(a) Concave lens of focal length 10 cm
(b) Convex lens of focal length 20 cm
(c) Concave mirror of focal length 10 cm
(d) Concave mirror of focal length 20 cm

22. A teacher sets up the stand carrying a convex lens of focal length 15 cm at 42.7 cm mark on the optical bench. He asks four students A, B, C and D to suggest the position of screen on the optical bench so that a distinct image of a distant tree is obtained almost immediately on it. The positions suggested by the students were as 

(i) 12.7 cm
(ii) 29.7 cm
(iii) 57.7 cm
(iv) 72.7 cm

The correct position of the screen was suggested by

(a) (i)    
(b) (ii)    
(c) (iii)  
(d) (iv)

23. A student has traced the path of a ray of light through a glass slab as follows. If you are asked to label 1, 2, 3 and 4, the correct sequencing of labeling ∠i, ∠e, ∠r and lateral displacement respectively is

Light Reflection And Refraction MCQ

(a) 2,1,3,4
(b) 1,2,3,4
(c) 1,3,2,4
(c) 1,3,4,2

24. In an experiment to trace the path of a ray of light through a triangular glass prism, a student would observe that the emergent ray

(a) is parallel to the incident ray. 
(b) is along the same direction of incident ray.
(c) gets deviated and bends towards the thinner part of the prism.
(d) gets deviated and bends towards the thicker part (base) of the prism.

25. Focal length of plane mirror is:

(a) at affinity
(b) zero
(c) negative
(d) None of these

MCQ Answers

1. (d)

Since, for device X the light rays coming from an object at infinity passes through device X and forms a real image on a screen on the right side. Since, a convex lens forms a real and inverted image at focus when the object is at infinity, device X is a converging lens or convex lens of focal length 20 cm.

For device Y, the beam of parallel rays from infinity is incidence on the left side and after reflection a real image is formed on the screen. This device should be a mirror. Also, the light rays are getting converged, so mirror is converging in nature it is a concave mirror of focal length 25 cm.

2.

As in order to get a sharp image the screen should be near to lens.

3. (a)

Since, the candle is at the farthest end but not at the infinity. So, an image will be formed between the focus and the centre of curvature of the lens, but parallel rays from the sun will converge at the focus. So, the distance between lens and screen should be reduced to get the image of the sun.

4. (b)

In case of a concave mirror, image size becomes equal to the object size when the object distance equals the radius of curvature i.e., twice the focal length.

So, the object has to be placed at a distance of (15 x 2) = 30 in front of a concave mirror.

Light Reflection And Refraction MCQ

5. (b)

A rear view mirror is a concave mirror. It has a wider field of coverage and gives a virtual, erect and diminished image of the object.

6. (a)

Bending of a ray of light on passing from one media to another is called reflection,

7. (b)

Black colour is a good absorber.

8. (b)

As the difference in refractive indices is maximum.

9. (c)

10. (c)

A concave mirror gives the dentist a magnified reflection of the mouth while also refracting a bit of light. It forms an image in the mirror as larger, brighten and for the dentist easier to see.

11. (a)

This type of reflection is known as regular or specular reflection.

12. (b)  

As angle of incidence is equal to angle of emergence when light ray is passed through the prism, and angle of refraction is smaller than two.

13. (a)

A concave mirror always forms the image of a distant object at its focus.

14. (c)

15. (b)

The image formed by concave mirror is real and inverted.

16. (c)

As the image is focused on screen, the image will be teal, inverted and diminished but the colour of the image will remain the same.

17. (a)

As the light tay when travelled fmm medium A to medium B, then they bend towards the normal which means that medium B has higher refractive index and less speed of light with respect to medium A, So, refractive index of medium B w.r.t. medium A will be greater than unity.

18. (c)

The optical device is a concave mirror because when light rays from a distant object (like sun) fall on this mirror, its image is formed at the focus of the mirror on same side as the object. Thus, the distance between the mirror and the screen is the focal length of the concave mirror. Hence, the focal length of a given device is 24 cm.  

19. (b) 

To achieve the best experimental set-up for tracing the path of a ray of light through a glass slab, the point of incidence should be in the middle of the glass slab and the incident angle should be close to 450.

20. (a)  

As the image is focused on the screen, then the image formed is real. And real images are inverted.

21. (d)

In the case of the concave mirror, the image will be formed on the same side of the screen at its focus point when the object is distant.

22. (c)

Focal length of convex lens f = 15 cm

It is placed at the 42.7 cm mark on the optical bench. When we want distant objects to be focused, we get an image at the focus of a convex lens.

Because rays from distant objects are parallel rays and they converge at focus.

Position of screen = 42.7 + 15 = 57.7 cm

23. (c)

Here I is angle of incidence, 3 is angle of emergence, 2 is the angle Of refraction and 4 is the lateral displacement.

24. (d)

Students will observe that the emergent ray gets deviated and beng towards the thick parts (i.e., base) of the prism.

25. (a)

A place mirror is a flat, reflecting surface 11m/s in the case of a plane mirror, when the parallel rays of light strike the mirror they get reflected back parallel to each other. So, they never meet, so we can say that they meet at infinity. So, the focal length of the plane mirror is infinity.


Very Short Answer Type Question

1. What is the magnification of the images formed by plane mirrors and why ? 

2. Why do we prefer a convex mirror as a rear-view mirror in vehicles ?

3. Why are concave mirrors used in a solar furnace ?

4. What kind of image can be obtained on the screen ?

5. Due to which property of light, sharp shadows of opaque objects are obtained ? 

6. When a mirror is held close to the face by a person, a diminished and erect image of the face is seen, what type of mirror is this ?

7. At what position can the object be placed in front of a concave mirror to form a real image of the same size?

8. Which metal is the best reflector of light ?

9. What is the nature of the image formed by a concave mirror if the magnification produced by the mirror is

10. Arrange air, glass and water in terms of descending order of refractive index.

Very Short Answer Type Question Answers

1. Magnification of the images formed by plane mirrors is 1 because the size of the image is equal to the size of the object.

2. Convex mirrors give a virtual, erect and diminished image of the objects placed in front of them. They are preferred as a rear-view mirror in vehicles because they give a wider field of view, which allows the driver to see most of the traffic behind him.

3. Concave mirrors are converging mirrors. That is why they are used to construct solar furnaces.

4. Real image.

5. Since light travels in a straight line, any obstacle obstructing the path will cast its shadow.

6. A convex mirror.

7. At the centre of curvature (or at 2F).

8. Silver metal is the best reflector of light.

9. Virtual and erect.

10. The descending order is  glass (1.5) > water (1.33) > air (1.003).


Assertion-Reason Based MCQs

Code

  1. Both assertion and reason are true and reason is the correct explanation of assertion.
  2. Both assertion and reason are true but reason is not the correct explanation of assertion.  
  3. Assertion is true but reason is false.
  4. Assertion is false but reason is true. 

1. Assertion : nature of the image formed by a concave mirror is real and inverted.

Reason : The image formed by a concave mirror depends on the position of the object at infinity.

2. Assertion : Convex mirrors are used for rear view on vehicles.

Reason : size of the image formed by a convex mirror will be same.

3. Assertion : Light bends from its path when it goes from one medium to another medium.

Reason : Speed of light changes, when it goes from one medium to another medium.

4. Assertion : The path of light passing through the colloidal solution becomes not visible.

Reason : The large particle size does not come its way.

5. Assertion : When a ray of light travels from air to water, its speed will increase.

Reason : The speed of light is slower in a denser medium than in a rarer medium.

6. Assertion : A ray of light that travels obliquely from one transparent medium into another will change its direction in the second medium.

Reason : Refraction is due to change in the speed of light as it enters from one transparent medium to another.

7. Assertion : The refractive index of kerosene is 1.44 which is optically denser than water.

Reason : The mass density of kerosene is lesser than water.

8. Assertion: Owls can move freely during night.

Reason: They have a large number of rods on their retina. 

9. Assertion: The air bubble shines in water.

Reason: Air bubbles in water shine due to refraction of light.

10. Assertion: Large concave mirrors are used to concentrate sunlight to produce heat in solar cookers. 

Reason: Concave mirror converges the light rays falling on it to a point.

Assertion-Reason Based MCQ Answers

36. (a)

When the object is placed at an infinity position,  the image formed by a concave mirror will be placed at the focus. Then the size of the image will be highly diminished and point-size. So, the nature of the image formed by the concave mirror is real and inverted. Thus, both assertion and reason are correct and reason is the correct explanation of the assertion.

37. (c)

Convex mirrors are used for rear view on vehicles. We use only convex mirrors for rear view. Convex mirrors will always give erect and diminished image of the object. They provide a wider field for clear view. For this reason, the convex mirrors are fitted on both sides of the vehicles. Thus, the assertion is true, but the reason is false.

38. (a)

When the light travels from one medium to another, speed changes so that it bends from its path. Thus, both assertion and reason are correct and reason is the correct explanation of the assertion.

39. (d)

We know that the path of light passing through a colloidal solution becomes visible because light is scattered by relatively larger particles. But the path of light passing through a clear solution is not visible because small particle sizes do not come its way. Thus, the assertion is false, but reason is true.

40. (d)

When a ray of light travels from air to water, its speed slows down because known that the velocity is slower in a denser medium (water) to rarer medium (air), agqerfion false, but reason is true,

41. (a)

A ray of light that travels obliquely from one transparent medium to another will change its direction in the second medium, It is nothing but the process called refraction. They occur due to change in the speed of light as it enters from one transparent medium to another. Both assertion and reason are correct and reason is the correct explanation of the assertion.

42. (b)

We know that the refractive index of kerosene is 1.44 and the refractive index of water is 1.33. It shows that kerosene is optically denser than water. But the mass density of kerosene is lesser than water. So, there is no relation between mass density and optical density. 

Therefore, It clearly defines that an optically denser medium may not possess greater mass density. Thus, the given assertion and reason are true but reason is not the correct explanation of assertion.

43. (c)

Owls can move freely during the night, because they have a large number of cones and rods on their retina which help them to see at night. Thus, the assertion is true, but the reason is false.

44. (c)

Shining of air bubbles in water is on account of total internal reflection. Thus, the assertion is true, but the reason is false.

45. (a)

Concave mirror converge the light rays falling on it to a point. So large concave mirrors are used to concentrate sunlight to produce heat in solar  cookers. Thus, both assertion and reason are true and reason is the correct explanation of the assertion.


Case-Study Based MCQs

1. Read the following passage and answer accordingly.

This figure shows a light ray travelling from medium with refractive index to a different medium with refractive index n2. It shows the bending of light ray due to a change in medium which is called ‘Refraction’. 

It also shows formation of a ‘Critical Angle’ and the phenomena of ‘Total Internal Reflection (TIR)’. The Refractive Index of a medium depends upon the refractive index of the surroundings, optical density, wavelength of the light and temperature. Lower the refractive index, faster the velocity of light.

light reflection and refraction MCQ

(i) Which is correct if total internal reflection occurs in medium I (with refractive index m)

(a) n2 > n1
(b) n1 = n2
(c) n1 > n2
(d) TIR does not depend upon refractive index

(ii) The measure of how much light bends in a medium is:

(a) refraction
(b) refractive index
(c) magnification
(d) scattering

(iii) Refractive index of ethanol is 1.361 and it is known that benzene is optically dense than ethanol.  Which could be the refractive index of benzene: 

(a) 1.350
(b) 1.281
(c) 1.333
(d) 1.501

(iv) Refractive index does not depend upon which of the following factor

(a) Temperature
(b) Frequency of light
(c) Optical density of material
(d) Pressure at constant density

(v) Diamond sparkles more than a similar cut glass piece. Reason being

(a) more cuts on the diamond are possible than that of a glass piece
(b) dispersion of light shown by diamond as compared with glass
(c) more total internal reflection due to greater refractive index of diamond
(d) diamond’s critical angle with reference to air is too small

2. Read the passage below and answer accordingly.

Light Reflection And Refraction MCQ

When you look at yourself in a mirror, you see your own image as if your exact twin are standing in front of you, but reversed right to left. The image appears as far into the mirror as you are in front of the mirror. If you step back, so does your image.

Image appears in mirrors because of how light is reflected by mirrors. As light is reflected from all surfaces, not just mirrors. But not all surfaces from images. The reason is the two types of reflections.

(i) For a plane mirror image formed is:

(I) erect and virtual
(Il) same size as the object
(Ill) laterally inverted

(a) only I is correct
(b) only Il is correct
(c) Il and Ill are correct
(d) All I, Il and Ill are correct

(ii) Match the following columns:

Column ‘A’ Column ‘B’
(I) Plane mirror(p) virtual image
(Il) Real image (q) cannot be taken on screen
(Ill) Virtual image(r) can be taken on screen
(IV) Convex mirror(s) lateral inversion

(a) I-r, Il-s, Ill-p, IV-q
(b) I-p, Il-q, Ill-r, IV-s 
(c) I-s, Il-r, Ill-q, IV-p
(d) I-s, Il-r, III-q, IV-p

(iii) In a plane mirror, the image formed is

(a) behind the mirror
(b) in front of the mirror
(c) both (a) and (b)
(d) none of these

(iv) A plane mirror reflects a pencil of light to form a real image. Then the pencil of light incident on the mirror is:

(a) parallel
(b) convergent
(c) divergent
(d) none of these

(v) What should be the angle between two plane mirrors so that whatever be the angle of incidence, the incident ray and the reflected ray from the two  mirrors are parallel to each other?

(a) 60°   
(b) 90°
(c) 120°   
(d) 175°

3. Read the below passage and answer accordingly.

Binoculars, like telescopes, produce magnified images of faraway objects. Figure shows a typical binocular design. Each side of the binoculars is like a small telescope: light enters a convex objective lens, which inverts the image. The light then travels through two prisms that are used to completely reflect the incoming ray to invert the image again, so that the viewer sees an image that is upright compared to the object. 

Light Reflection And Refraction MCQ

(i) Binocular is basically a

(a) microscope
(b) telescope 
(c) dispersion device
(d) magnifying glass

(ii) Prisms are used in binoculars

(a) for reflection
(b) for refraction
(c) for dispersion
(d) for total internal reflection

(iii) Binoculars are used to see

(a) near objects
(b) far objects
(c) both near and far object 
(d) None of the above

(iv) Refractive index air is

(a) 1.00
(b) 0.5
(c) 1.5
(d) 2.0

(v) The lens facing object in binocular is called

(a) object lens
(b) objective lens
(c) intermediate lens
(d) eye lens

4. Read the following passage and answer accordingly. 

Light is a form of energy that produces the sensation of sight. Reflection of light is the phenomenon of bouncing back of light in the same medium on striking the surface of any object.

The two laws of reflection are the incident ray, the reflected ray and the normal (at the point of incidence), all lie in the same plane and the angle of reflection (r) is always equal to the angle of incidence (i). Refraction of light is the phenomenon of change in the path of light in going from one medium to another.

Light Reflection And Refraction MCQ

(i) Mirage is caused due to 

(a) Total Internal Reflection of light by the various layers of air
(b) illusion of the presence of water
(c) result of refraction of light from a non-uniform medium
(d) during sunny days when driving on a roadway 

(ii) What is mirage?

(a) Depends on the position of object  
(b) Mirror is concave and the lens is convex
(c) Goes straight into the second medium
(d) Optical illusion caused due to Total Internal Reflection

(iii) What are the two types of mirage?

(a) Thin mirage and thick mirage
(b) Inferior mirage and superior mirage
(c) Intense mirage and diminished mirage 
(d) Light mirage and dark mirage 

(iv) How a mirage is formed?

(a) Between focus and centre of curvature
(b) Is formed away from the normal
(c) Illusion of the presence of water and is a result of refraction of light from a non-uniform medium
(d) Is reflected along the same path

(v) Mirage is observed mainly during _________ days.

(a) Sunny   
(b) Winter
(c) Spring   
(d) Hot

5. Read the following passage and answer accordingly.

Rear view mirror is a device that allows the driver to sec rearward. It usually finds its place at the top of the windscreen inside the cabin. This device is one of the most basic but essential safety devices in the vehicle. It provides assistance to the driver during overtaking, parking in reverse gear etc. 

Generally, vehicles also have a pair of mirrors attached to the body from outside. Illey are popular as ‘side mirrors’ or Outer Rear View Mirrors (ORVM) which serve the same purpose.

Almost all modern cars mount their side mirrors on the doors-normally at A-pillar rather than the wings (the portion of the body above the wheel well).

Light Reflection And Refraction MCQ

(i) For a real object, which of the following can produce a real image?

(a) Plane mirror
(b) Concave mirror
(c) Convex mirror 
(d) None of these

(ii) An object at a distance of +15 cm is slowly moved towards the pole of a convex mirror. The image will get…

(a) shortened and real
(b) enlarged and real
(c) enlarge and virtual
(d) diminished and virtual

(iii) A convex mirror is used

(a) by a dentist
(b) for shaving
(c) as a rear view mirror in vehicles
(d) as a light reflector for obtaining a parallel beam of light 

(iv) The word ‘AMBULANCE’ is written on the vehicle as:

(a) CNALUBMA
(b) ECNALUBMA
(c) AMBULAACE
(d) None of these 

(v) Mark the correct statement:

(a) Convex mirrors conform to images of objects spread over a large area
(b) Convex mirrors are used by dentist
(c) In convex mirror images are formed larger in size, erect and real
(d) Convex mirror forms a real image

6. Using the following Information form a pathway showing the representation of an Image in A Spherical mirror. And algo include Information that is not mentioned below to complete it. Ray, centre of spherical mirror, reflection, light rayg, reflecting surface.

7. Using the following information form a pathway defining refractive index. And algo include information that is not mentioned below to complete it. Ray of light, second medium, refractive index, speed, media, air.

8. Using the following information form a pathway showing the formation of image by a convex mirror. And also include information that is not mentioned below to complete it.

Convex, Infinity, position of image, size of image, Nature of image, between infinity and pole.

9. Using the following information form a pathway showing the process of magnification in a spherical mirror. And also include information that is not mentioned below to complete it.

Magnification, spherical mirror, object image, ratio, height of image, positive, negative.

10. Using the following information form a pathway showing the representation of an image in a spherical mirror. And also include information that is not mentioned below to complete it.

Ray, centre of spherical mirror, reflection, light rays, reflecting surface.

Case-Study Based MCQ Answers

1. 

(i) (c) n1 > n2

(ii) (b) refractive index

(iii) (d) 1.501

(iv) (d) Pressure at constant density (v) (c) more total internal reflection due to greater refractive index of diamond 

2. 

(i) (d) All I, Il and Ill are correct

(ii) (c) I-s, Il-r, Ill-q, IV-p

(iii) (a) behind the mirror

(iv) (b) convergent 

(v) (b) 90

3.   

(i) (b) telescope

(ii) (d) for total internal reflection

(iii) (b) far object

4. 

(i) (a) Total Internal Reflection light by the various layers of air

(ii) (d) Optical illusion caused due to the total internal reflection 

(iii) (b) Inferior mirage and superior mirage (iv) (c) Illusion of the presence of water and is a result of refraction of light from a non-uniform medium   

(v) (a) Sunny

5.   

(i) (b) Concave mirror   

(ii) (d) diminished and virtual

(iii) (c) as a rear view mirror in vehicles

(v) (a) Convex mirror conforms to images of objects spread over a large area.

6. In both concave and convex mirrors for the ray passing through the centre of curvature the reflection is along the same path. The reflection of light rays is along the same path since the rays incident on the mirror is normal to the reflecting surface.

7. The refractive index Y is the extent of change in direction in the second medium of a given media pair. The propagation of light travels with different speeds in different media. The speed of light in air is comparatively less when compared to vacuum.

8. Two positions of objects considered in the formation of image by a convex mirror.

Position 1 : The position of the object at infinity is at the focus F behind the mirror, the image size is highly diminished and point sized. The nature of the image is virtual and erect.

Position 2 : The position of the object between infinity and pole P displays the image position between P and F behind the mirror. Size of the image is diminished. Nature of the image is virtual and erect.

9. The spherical mirror magnifies an object’s image to a relative extent with respect to object size. It is the ratio of height of image to the height of object. The positive sign in magnification value denotes the virtual image. The negative sign in magnification value denotes real image.

10. In both concave and convex mirrors for the ray passing through the centre of curvature the reflection is along the same path. The reflection of light rays is along the same path since the rays incident on the mirror is normal to the reflecting surface.


Click Below To Learn Social Science Term-1 Syllabus Chapterwise MCQs

Final Words

From the above article, you have practiced Light Reflection And Refraction MCQ of class 10 Science chapter 10. We hope that the above-mentioned MCQs for term 1 of chapter 10 Light Reflection And Refraction  will surely help you in your exam. 

If you have any doubts or queries regarding Light Reflection And Refraction MCQ (Multiple Choice Questions) with Answers, feel free to reach us and we will get back to you as early as possible.

Share on:
error: Content is protected !!