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The earth satellite Aryabhatta was put in orbit by India on

A. October 20, 1978

B. November 14, 1978

C. January 26, 1979

D. April 19, 1975

You can do it yup
  1. The coil of an electric heater is made of
  2. In a longitudinal wave, the direction of propagation of the wave is
  3. The stars that shine brightly then dimly and then brightly are known as
  4. The body of an electrical appliance is earthed in order that
  5. Formation of shadows can be explained by
  6. The inability of a body to change its state of rest or uniform motion along a straight line is called…
  7. In a dynamo
  8. The image formed by a plane mirror is
  9. In an electrical circuit, a fuse is connected
  10. In an oil lamp, holes are provided below the chimney so that
  11. A lactometer la used to
  12. The spectrum of white light can be studied by
  13. The hydraulic jack to lift heavy vehicles in automobile service stations is one of the applications…
  14. Compared to the atomic bomb, the destructive power of a hydrogen bomb is
  15. Where does the centre of gravity of a rubber ring lie?
  16. Pieces of camphor placed on water move about rapidly. This is because of
  17. When a swing la drawn to a side Its potential energy In relation to the earth
  18. Which part of the eye photographic camera?
  19. The electroplating of a metallic article
  20. A spherical mirror is
  21. We see the flash of lightning before hearing the thunder because
  22. Air escaping rapidly from a narrow orifice in an inflated tyre feels cool because
  23. When a bowler spins a ball, it changes its direction in the air. This is due to
  24. The focal length or lens or the eye is under the control or the
  25. The freezer in a refrigerator is placed near the top
  26. The orbit of Venus lies between those of
  27. The neutron, one of the constituent particles of which the nuclei of atoms are composed was discovered…
  28. The maximum range of most TV signals is from 121 to 240 km only because
  29. The principle on which a Jet engine works is
  30. A workman was working on a rail track. A young boy at a distance holds his ear close to the railway…