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The principle of equivalence of mass and energy was established by

A. Dalton

B. Rutherford

C. Einstein

D. Planck

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  1. When a body is projected upwards
  2. Moon has no atmosphere because
  3. In a refrigerator cooling is produced by
  4. A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity…
  5. In the ramous equation of Einstein E = mc2 , 'c' denotes.
  6. When ice melts, Its volume
  7. The mode of travel of heat energy from the sun across the empty space beyond the earth's atmosphere…
  8. A temperature below absolute zero for an ideal gas
  9. Out of the following, name the fluorescent substance.
  10. Bats flying in the dark avoid obstacles because
  11. On applying a constant force to a mass, It moves with a uniform
  12. A bar magnet tied in the middle with a thread is suspended at the South Pole of the earth. The magnet…
  13. The characteristics of a musical note are
  14. A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water…
  15. The hydraulic jack to lift heavy vehicles in automobile service stations is one of the applications…
  16. A series of east moving still pictures can be made to appear as a moving picture because the eye
  17. A lactometer la used to
  18. The barometer was invented by
  19. Mercury does not stick to glass because
  20. Increase in pressure
  21. A rod of brass la held in hand and rubbed with fur. The rod is found to have
  22. Which part of the eye photographic camera?
  23. The extremely luminous objects located at the centre of some distant galaxies and which are sources…
  24. Alternating Current (AC) is more advantageous than direct current because
  25. The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because
  26. In the electrical circuit of a house the fuse acts as
  27. A man weighing 50 kg floats on water in a lake. His apparent weight is
  28. A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because
  29. A proton is
  30. The ballistic missile, Agni 11, tested by India has a maximum range of