The period of oscillation of a simple pendulum depends upon

A. the mass of its bob

B. the material of the bob

C. the amplitude of vibration

D. acceleration due to the gravity at the site of experiment

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  1. It is easier to climb down a staircase than climb up because in climbing down
  2. When light passes from air to glass, its velocity in glass
  3. The coil of an electric heater is made of
  4. In a hydraulic pressure
  5. The electron has a mass equal to
  6. The maximum range of most TV signals is from 121 to 240 km only because
  7. Air escaping rapidly from a narrow orifice in an inflated tyre feels cool because
  8. A solar eclipse occurs when the earth, the sun and the moon are in a straight line, and
  9. The mass number and the atomic number of an element are X and Y respectively. The number oC neutrons…
  10. The scientist who first sent electromagnetic waves to distant places was
  11. Metals are good conductors of heat because
  12. When the disturbed electrons of an exited atom transfer back into lower energy levels they emit energy…
  13. When a body Is taken to the poles from the equator, Its weight becomes
  14. The cover of a solar cooker is made of glass because
  15. The nuclear model of atom was first visualised by
  16. A heavenly body similar in nature to the sun intensely hot glowing mass that produces its energy by…
  17. Water has maximum density at
  18. Who discovered that the Cree Call acceleration Is the same for any object at a given place?
  19. If an object is placed between two parallel plane mirrors, the number of images formed will be
  20. The Solar System lies near the edge of a galaxy known as
  21. A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water…
  22. Among the following the most suitable material for the core of an electro-magnet is
  23. In which of the following will a piece of iron weigh most?
  24. The radius of curvature of a spherical mirror is
  25. Frictional force acts in
  26. The attraction between similar molecules is called
  27. When a whistling engine approaches a person standing on the platform, the frequency or the note
  28. The best estimates of the age of the earth comes from the studies of
  29. The Indian Space Research Organisation (ISRO) is located at
  30. Astigmatism, a structural defect of the eye, is due to