1. The image formed by a camera and a simple microscope are respectively

2. Light passing through a prism splits into seven colours. This is called

3. Name the type of mirror used as a backview mirror.

4. Band of seven colours is called

5. The defect due to which a person is not able to see the distant objects clearly

6. Which one of the following statements is correct regarding rods and cones in the human eye?

7. The splitting of white light into its seven constituent colours is called

8. The amount of light entering the eye is controlled by

9. What is the angle of incidence of a ray if the reflected ray is at an angle of 90° to the incident ray?

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

11. Front balged part of the eyeball is called

12. When we stand in front of our dressing table, our left hand seems to be right and right seems to be left. This is called

13. An owl can see clearly at night but not day time because it has

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

15. Beam of light striking the reflecting surface is called

16. Visually impaired people can read and write using

17. Rainbow is a natural phenomenon showing

18. Myopia can be corrected by using a

19. Light enters the eye through

20. A smooth shining surface, which rebounds the light back in same or in different direction, is called