1. Light travels in the form of?
2. The bouncing back of light from a surface is called?
3. The angle between the incident ray and the normal is called?
4. According to the law of reflection?
5. The mirror used as a rear-view mirror in vehicles is?
6. A plane mirror forms an image that is?
7. The bending of light when it passes from one medium to another is called?
8. Which medium has the highest speed of light?
9. The splitting of white light into different colors is called?
10. The seven colors of visible light together form?
11. Which color has the longest wavelength?
12. Which color has the shortest wavelength?
13. The device used to observe dispersion of light is?
14. The image formed by a concave mirror can be?
15. The mirror used in shaving mirrors is?
16. A rainbow is formed due to?
17. The image distance in a plane mirror is?
18. Light travels in straight lines. This property is called?
19. The speed of light in vacuum is approximately?
20. The phenomenon responsible for the twinkling of stars is?
