This is Part II of MCQs on Class 10 Science Chapter 9 Light– Reflection and Refraction.
Here also, we have discussed another 30 Multiple Choice Questions. These questions will help you to learn more about the chapter and test your knowledge.
For each question below, there are four options out of which only one option is correct. The correct answer to each question is given at the end for your reference.
MCQ on Class 10 Science Chapter 9 (Part – II)
1. The phenomenon of bending of light around obstacles is called:
A) Reflection
B) Refraction
C) Diffraction
D) Dispersion
2. The change in the direction of light when it passes through a medium with varying density is known as:
A) Reflection
B) Refraction
C) Diffraction
D) Dispersion
3. The angle of incidence is the angle between:
A) The incident ray and the reflected ray
B) The incident ray and the normal
C) The reflected ray and the normal
D) The refracted ray and the normal
4. Which of the following materials is used to make plane mirrors?
A) Polished steel
B) Transparent glass
C) Transparent plastic
D) Mercury coating on glass
5. A concave mirror can form a virtual image when the object is placed:
A) Beyond the center of curvature
B) Between the focus and the center of curvature
C) Between the mirror and the focus
D) At the center of curvature
6. Which type of mirror is used by dentists to see larger images of teeth?
A) Plane mirror
B) Convex mirror
C) Concave mirror
D) Spherical mirror
7. The distance between the pole and the principal focus of a concave mirror is:
A) Focal length
B) Radius of curvature
C) Aperture
D) Magnification
8. A convex lens can form a real and inverted image when the object is placed:
A) Beyond 2F
B) Between F and 2F
C) At 2F
D) At the focus (F)
9. The bending of light when it passes from air to glass is an example of:
A) Reflection
B) Refraction
C) Diffraction
D) Polarization
10. The deviation of light when it passes through a prism depends on:
A) Its color
B) Its wavelength
C) Its speed
D) All of the above
11. The angle between the incident ray and the normal is 30 degrees. What is the angle of reflection?
A) 30 degrees
B) 60 degrees
C) 90 degrees
D) 120 degrees
12. The angle of incidence is 45 degrees. If the angle of reflection is 45 degrees, then the type of reflection is:
A) Regular
B) Diffuse
C) Irregular
D) Total internal
13. The angle of incidence is 30 degrees. What is the angle of refraction if the refractive index of the medium changes from 1.5 to 1.3?
A) 26.67 degrees
B) 32.31 degrees
C) 22.62 degrees
D) 28.54 degrees
14. When a ray of light passes from water to air, which of the following statements is true?
A) The speed of light increases
B) The wavelength of light increases
C) The angle of refraction decreases
D) The angle of incidence decreases
15. A ray of light passing through the optical center of a lens:
A) Does not bend
B) Bends towards the principal axis
C) Bends away from the principal axis
D) Forms an inverted image
16. The focal length of a concave mirror is:
A) Negative
B) Positive
C) Zero
D) Infinite
17. Which of the following lenses is used to correct myopia (short-sightedness)?
A) Convex lens
B) Concave lens
C) Biconvex lens
D) Biconcave lens
18. The formation of a rainbow is an example of:
A) Refraction
B) Dispersion
C) Diffraction
D) Polarization
19. The refractive index of a medium is the ratio of the speed of light in:
A) Vacuum to the speed of light in the medium
B) The medium to the speed of light in vacuum
C) Water to the speed of light in the medium
D) Air to the speed of light in the medium
20. The angle of deviation produced by a prism depends on:
A) The refractive index of the prism material
B) The angle of incidence
C) The thickness of the prism
D) All of the above
21. The phenomenon of mirage occurs due to:
A) Reflection
B) Refraction
C) Total internal reflection
D) Polarization
22. The splitting of white light into its component colors when it passes through a glass prism is called:
A) Dispersion
B) Reflection
C) Refraction
D) Diffraction
23. The colors of the spectrum from the lowest to the highest frequency are:
A) Violet, blue, green, yellow, orange, red
B) Red, orange, yellow, green, blue, violet
C) Violet, indigo, blue, green, yellow, orange, red
D) Red, violet, blue, green, yellow, orange
24. The refractive index of a medium with respect to air is always:
A) Less than 1
B) Greater than 1
C) Equal to 1
D) Variable
25. When light passes from a denser medium to a rarer medium, it:
A) Bends towards the normal
B) Bends away from the normal
C) Does not bend
D) Changes color
26. The critical angle for a transparent medium is the angle of incidence for which the angle of refraction is:
A) 90 degrees
B) 45 degrees
C) 180 degrees
D) 0 degrees
27. Total internal reflection occurs when:
A) Light passes from a denser medium to a rarer medium
B) Light passes from a rarer medium to a denser medium
C) The angle of incidence is less than the critical angle
D) The angle of incidence is greater than the critical angle
28. Mirage is an example of:
A) Total internal reflection
B) Refraction of light
C) Dispersion of light
D) Polarization of light
29. A concave mirror has a focal length of 10 cm. Where should the object be placed to form a real, inverted, and magnified image?
A) At 5 cm from the mirror
B) At 10 cm from the mirror
C) Beyond 10 cm from the mirror
D) Between 5 cm and 10 cm from the mirror
30. A convex lens has a focal length of 20 cm. Where should the object be placed to form a virtual, erect, and diminished image?
A) At 20 cm from the lens
B) Beyond 20 cm from the lens
C) At 10 cm from the lens
D) Between 10 cm and 20 cm from the lens
Correct Answers
Here is the list of the correct answers to the above questions.
- C) Diffraction
- B) Refraction
- B) The incident ray and the normal
- D) Mercury coating on glass
- B) Between the focus and the center of curvature
- C) Concave mirror
- A) Focal length
- A) Beyond 2F
- B) Refraction
- D) All of the above
- C) 90 degrees
- A) Regular
- B) 32.31 degrees
- A) The speed of light increases
- A) Does not bend
- A) Negative
- B) Concave lens
- B) Dispersion
- A) Vacuum to the speed of light in the medium
- D) All of the above
- B) Refraction
- A) Dispersion
- D) Red, violet, blue, green, yellow, orange
- B) Greater than 1
- B) Bends away from the normal
- A) 90 degrees
- D) The angle of incidence is greater than the critical angle
- A) Total internal reflection
- C) Beyond 10 cm from the mirror
- B) Beyond 20 cm from the lens
The Bottom Line
I hope part II of MCQs on Light–Reflection and Refraction of Class 10 Science Chapter 9 has helped you in your studies and preparation.
If you have any queries, or comments or find any mistake in the above questions, feel free to contact me in the comment section below.
I would love to hear from you.
Abdur Rohman is an Electrical Engineer from Charaideo, Assam, who wears multiple hats as a part-time teacher, blogger, entrepreneur, and digital marketer. Passionate about education, he founded The Assam School blog to provide free, comprehensive textbook solutions, MCQs (Multiple Choice Questions), and other academic content for students from Class V to XII.