MCQs on Reflection and Refraction of Light with Answers Pdf - YB Study

# MCQs on Reflection and Refraction of Light with Answers Pdf

Light Refraction and Reflection MCQ is an important Chapter for class 10 students appearing for the CBSE board exam also. Below we are provided MCQ on Light Refraction and Reflection class 10 Prepared by subject experts and students can refer to these  MCQ Questions for Light Refraction and Reflection for their CBSE board exam preparation.

Below Light reflection and refraction class, 10 MCQ with answers pdf are prepared for class 10 students. These fully solved MCQ questions apply to all college students, freshers, or experienced as well as various tests & contests in colleges. CBSE board Aspirants can enhance their knowledge through regular practice which will help them crack any exam.

These MCQ questions for Class 10 Light Refraction and Reflection MCQ provided here help students to understand each Concept of the chapter easily and interestingly. Students can practice these MCQs thoroughly to score maximum marks in the CBSE board exam.

## MCQ on Light Class 10:

1. Which statement is true for the reflection of light?

1. The angle of incidence and reflection are equal.

2. The reflected light is less bright than the incident light.

3. The sum of the angle of incidence and reflection is always greater than 900.

4. The beams of incident light after reflection diverge at unequal angles.

Answer: The angle of incidence and reflection are equal.

2. Focal length of a concave mirror is________

1. Negative

2. Positive

3. Depends on the position of the object

4. Depends on the position of the image

3. Large aperture objects are used in telescopes because they_________

1. Have better dispersion

2. Have less aberration

3. Have a better resolution

4. Can see larger objects

4. A beam of light incident on a plane mirror forms a real image on reflection. The incident beam is____________

1. Parallel

2. Convergent

3. Divergent

4. Not certain

5. When the object is placed between f and 2f of a convex lens, the image formed is______

1. At f

2. At 2f

3. Beyond 2f

4. Between O and f

6. Which position of the object will produce a magnified virtual image if a concave mirror of focal length 15 cm is being used?

1. 10 cm

2. 20 cm

3. 30 cm

4. 35 cm

7. The angle of incidence is equal to the_________

1. Angle of glancing

2. Angle of deviation

3. Angle of reflection

4. Angle refraction

8. Spherical air bubble in water will act as ________

1. A concave lens

2. A convex lens

3. Plane-concave lens

4. a Plane glass plate

9. Clay cannot be used to make lens because it is totally__________

1. Transparent

2. Optical

3. Opaque

4. Both a and b

10. Two thin lenses, one of focal length +60 cm and the other of focal length -20 cm are kept in contact. Their combined focal length is__________

1. - 30 cm

2. + 30 cm

3. -15 cm

4. + 30 cm

11. A concave mirror produces a magnification of +4. The object is placed_________

1. At the focus

2. Between focus and center of curvature

3. Between focus and pole

4. Beyond the center of curvature

12. The mirrors used in torches, searchlights, and vehicle headlights to get a powerful parallel beam of light are_______

1. Convex mirror

2. Convex lens

3. Concave mirror

4. Concave lens

13. If an incident ray passes through the focus, the reflected ray will__________

1. pass through the pole

2. be parallel to the principal axis

3. retrace its path

4. pass through the center of curvature

Answer: be parallel to the principal axis

14. Convex mirror is also called as__________

a) Converging mirror

b) Diverging mirror

c) Both a and b

d) None

15.  What is  Laser?

1. Coherent and monochromatic only

2. Intense and monochromatic only

3. Intense and coherent only

4. Intense coherent and monochromatic

16. Image formed by a convex spherical mirror is_____________

1. virtual

2. real

3. enlarged

4. inverted

17 . When light travels from one medium to other whose refractive index is different, then which of the given will change?

1. Wavelength and velocity

2. Frequency and wavelength

3. Frequency and wavelength

4. Frequency, wavelength, and velocity

18. The angle of incidence for a ray of light having zero reflection angle is__________

1. zero

2. 30°

3. 45°

4. 90°

19. Speed of light in Vacuum is__________

1. 1.6 x 10²³ m/s

2. 6 x 10²⁴ m/s

3. 3 x 10⁸ m/s

4. None of these

20. If the object is placed at infinity in the case of the concave mirror then the image formed at the focus F will be__________

1. Real, inverted, diminished

2. Real, inverted, diminished with point size

3. Real, inverted, magnified

4. Virtual, inverted, magnified

Answer: Real, inverted, diminished with point size

21. Refractive index is related to ________

1. Length of light in different mediums

2. Speed of light rays in different mediums

3. Both the above options

4. None of the above

Answer: Speed of light rays in different mediums

22. When light falls on a smooth polished surface, most of it________

1. is reflected in the same direction

2. is reflected in different directions

3. is scattered

4. is refracted into the second medium

Answer: is reflected in the same direction

## Light Reflection and Refraction Class 10 MCQ:

23. Braille system is used by____________

(a) Hearing impaired

(b) Black people

(c) Blind people

(d) African people

24. Which of the following is an example of a luminous object?

(a) Star

(b) Smooth surface

(c) Mirror

(d) Cloth

25. A number of rays from different direction assemble at point are called______________

(a) Intersecting rays

(b) Parallel rays

(c) Divergent rays

(d) Convergent rays

26. There are ______ laws of reflection.

(a) two

(b) three

(c) four

(d) five

27. In a periscope, how are the reflecting mirrors arranged?

(a) Perpendicular to each other

(b) At an angle of 45°

(c) At an angle of 90°

(d) At an angle of 60°

28. A smooth shining surface, which rebounds the light back in the same or in a different direction, is called__________

(a) a mirror

(b) a lens

(c) reflection of light

(d) point of incidence

29. Front bulged part of the eyeball is called______________

(a) cornea

(b) choroid

(c) pupil

(d) retina

30. In case of reflection of light, the angle of incidence (i) and the angle of reflection (r) are related as______________

(a) i = r

(b) i < r

(c) i > r

(d) no definite relation

31. Visually impaired people can read and write using_____________

(a) electronic writer

(b) digital pens

(c) braille system

(d) hearing aids

32. The splitting of white light into its seven constituent colours is called___________

(a) refraction

(b) dispersion

(c) deviation

(d) reflection

33. The defect due to which a person is not able to see the distant objects clearly______________

(a) Myopia

(b) Hypermetropia

(c) Cornea

(d) Cataract

34. If the angle of incidence of light falling on a plane mirror is 30°, what will be the angle of reflection?

(a) 90°

(b) 60°

(c) 30°

(d) 0°

35. Rainbow is a natural phenomenon showing_______________

(a) Reflection

(b) Deflection

(c) Dispersion

(d) Diversion

36. If light falls perpendicularly on a plane mirror, what will be the angle at which it will be reflected?

(a) 45°

(b) 90°

(c) 180°

(d) 360°

37. An owl can see clearly at night but not day time because it has___________

(a) More rods and few cones

(b) Fewer rods and more cones

(c) More rods and more cone

(d) Fewer rods and fewer cones

38. How many images are obtained when plane mirrors are arranged parallel to each other?

(a) A single image

(b) Two images

(c) Infinite number of images

(d) Zero image

39. ______ refers to the collection of rays.

(a) Image

(b) Photon

(d) Beam

40. The angle of incidence is always ______ to the angle of reflection.

(a) greater

(b) smaller

(c) equal

(d) none of the above

41. When the angle between two plane mirrors is 60∘, how many images will be formed by the mirrors?

(a) 5

(b) 6

(c) 7

(d) 8

42. Which of the following substance change the direction of light?

(a) Thin plastic sheet

(b) Lens

(c) Water

(d) Mirror

43. Which of the following travels faster?

(a) Jet Airplane

(b) Sound

(c) Light

(d) Supersonic plane

44. Band of seven colours obtained on screen after dispersion is called___________

(a) Scattering

(b) Spectrum

(c) Transparency

(d) Reflection

45. In our houses, which of the following is used for looking at ourselves?

(a) Convex mirror

(b) Concave mirror

(c) Convex lens

(d) Plane mirror