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

# Light Reflection and Refraction Class 10 MCQs with Answers Pdf Download

Light Refraction and Reflection 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 their CBSE board exam preparation. Below MCQ questions and answers 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 MCQs questions for class 10 Chapter 10 Light Refraction and Reflection 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.

## Light Reflection and Refraction class 10 MCQs with Answers

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 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

Answer: Have a better resolution

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

Answer: Angle of reflection

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

Answer: A concave lens

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

Answer:  - 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

Answer: Between focus and pole

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

Answer: 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

Answer: 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

Answer: 3 x 10⁸ m/s

20. If the object is placed at infinity in case of concave mirror then 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 ray in different mediums

3. Both the above options

4. None of the above

Answer: Speed of light ray 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