Physics Practice: Light (Mock Test 1 - Basic)
1. A form of energy that produces the sensation of vision is called:
2. Objects that emit light of their own are known as:
3. Which of the following is a natural source of light?
4. Light travels in a straight line. This property is called:
5. Materials that allow light to pass through them completely are:
6. A dark patch formed when an opaque object obstructs the path of light is a:
7. The bouncing back of light from a polished surface is called:
8. Which of the following is a non-luminous object?
9. A very narrow path of light represented by a straight line with an arrow is a:
10. Butter paper and frosted glass are examples of ________ materials.
11. A collection of light rays is called a:
12. The speed of light in vacuum is approximately:
13. Which instrument works on the principle of rectilinear propagation of light?
14. An image formed in a pinhole camera is always:
15. The central dark part of a shadow is called:
16. Solar and Lunar eclipses are natural phenomena based on:
17. A lunar eclipse occurs when ________ comes between the Sun and the Moon.
18. The partially dark outer region of a shadow is the:
19. We can see non-luminous objects because they ________ light into our eyes.
20. A beam of light in which rays move away from a point source is called: