2. When a body falls freely towards the Earth, then it's total energy ____?
3. The colour of light is determined by its ____ ?
4. ___ mirrors are mainly used in Solar Cooker ?
5. Electro Magnetic Wave Theory was proposed by ____ ?
6. Diverging lens produces __ type of image ?
7. Which gas is used inside a Geiger counter ?
8. The flying of birds is a example of Newton's __ Law ?
9. Fluids which flow with Zero Viscosity are called ___ ?
10. When water in a glass tube is heated, the level of the water ___ ?
11. Theory of Relativity was introduced by ?
12. The particle which travel faster than light is called ___ ?
13. Piston rings are made of ___ ?
14. One Horse Power is equal to ___ ?
15. Bosons which carry electro magnetic forces is known as ?
16. Bosons which carry strong nuclear forces is known as ?
17. The glass which is used in making of Lenses and Prisms ?
18. The weight of a body is ___ at the poles of the Earth ?
19. The weight of a body is ___ at the Equator ?
20. The weight of a body is ____ at the Center of the Earth ?
21. Doppler Effect was discovered by ?
22. Cosmic ray was discovered by ?
23. Study of Light and Vision ?
24. The lowest atmospheric layer ?
25. First Superconducting metal is ___ ?
26. Permanent magnets can be made from ___ ?
27. The colour of Ozone layer ?
28. The process of water become vapour is called ____ ?
29. Study of Sound ?
30. The distance travelled by a body in unit time is called ___ ?
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