Home

The scientist who first sent electromagnetic waves to distant places was

A. James Clerk Maxwell

B. Heinrich Hertz

C. Thomas Alva Edison

D. Baird

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. The source of electric energy in an artificial satellite is
  2. A photon is
  3. Some persons are not able to see distant objects clearly because the image of the object is focused…
  4. The spectrum of white light can be studied by
  5. Cyclotron is an apparatus used
  6. A rod of brass la held in hand and rubbed with fur. The rod is found to have
  7. Pyrometers are instruments used
  8. The maximum displacement of the particle in a mechanical wave motion is known as
  9. The phenomenon of radioactivity was discovered by
  10. A light year means
  11. A hunter on the ground wishes to shoot a bird on a tree at a distance with his rifle. He has to point…
  12. To produce beats it is necessary to have two waves
  13. The barometer was invented by
  14. While crossing a suspension bridge, the soldiers are ordered to break steps because
  15. The instrument used to measure atmospheric pressure is
  16. Isotones are species of atoms containing
  17. The red colour of the setting sun is due to
  18. At temperature near OK, (zero kelvin) metals such as lead and tin become
  19. A simple mercury barometer is found in a slightly slanting position. The atmospheric pressure
  20. Mercury does not stick to glass because
  21. Separating particles from a suspension is effected by
  22. Which of the following can produce electricity?
  23. A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside…
  24. Rays from the headlight of a motor car are rendered parallel by suitably using
  25. The pressure of air at high altitude is less than the atmospheric pressure at the sea level. Hence the…
  26. The atmosphere gets heated up mainly by
  27. A bullet is fired at a certain angle with the horizontal. Its path will be
  28. The asteroids belt lies between the orbits of
  29. If a band is played on the moon the sound will
  30. The mode of travel of heat energy from the sun across the empty space beyond the earth's atmosphere…