50 mark question paper on Light – Reflection and Refraction

1 mark questions

1. What is reflection of light?
2. What is refraction of light?
3. What is the difference between regular and diffuse reflection?
4. What is the difference between a real image and a virtual image?
5. What is the center of curvature of a spherical mirror?
6. What is the principal axis of a spherical mirror?
7. What is the principal focus of a spherical mirror?
8. What is the focal length of a spherical mirror?
9. What is the mirror formula?
10. What is the magnification of a spherical mirror?

2 mark questions

11. Explain the formation of an image by a concave mirror when the object is placed at infinity.
12. Explain the formation of an image by a concave mirror when the object is placed between the center of curvature and the principal focus.
13. Explain the formation of an image by a convex mirror when the object is placed in front of the mirror.
14. What are the laws of refraction?
15. What is the refractive index of a medium?

3 mark questions

16. Derive the mirror formula.
17. Explain the formation of an image by a convex lens when the object is placed at infinity.
18. Explain the formation of an image by a convex lens when the object is placed between the optical center and the principal focus.
19. What is the lens formula?
20. What is the magnification of a spherical lens?