In order to double the period of a simple pendulum, the length of the string should be

A. Halved

B. Doubled

C. Quadrupled

D. None of these

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

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  1. The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations.
  2. Klein's construction can be used when
  3. The length of a simple pendulum which gives the same frequency as the compound pendulum, is
  4. The tractive force is maximum or minimum when the angle of inclination of crank with the line of stroke…
  5. Inertia force acts
  6. When the two elements of a pair have a surface contact when relative motion takes place and the surface…
  7. When the relation between the controlling force (Fc) and radius of rotation (r) for a spring controlled…
  8. The natural frequency of free transverse vibrations due to uniformly distributed load acting over a…
  9. A reed type tachometer use the principle of
  10. The Hooke's joint consists of:
  11. The type of coupling used to join two shafts whose axes are neither in same straight line nor parallel,…
  12. Frequency of vibrations is usually expressed in
  13. If some links are connected such that motion between them can take place in more than one direction,…
  14. The Klein's method of construction for reciprocating engine mechanism
  15. A system of masses rotating in different parallel planes is in dynamic balance if the
  16. Pitch point of a cam is
  17. A pulley and belt in a belt drive form a
  18. When the elements of a pair are kept in contact by the action of external forces, the pair is said to…
  19. When the sleeve of a Porter governor moves downwards, the governor speed
  20. When a slider moves on a fixed link having curved surface, their instantaneous centre lies
  21. What is the number of instantaneous centres for an eight link mechanism?
  22. The ratio of maximum fluctuation of energy to the workdone per cycle is called
  23. The ratio of the maximum displacement of the forced vibration to the deflection due to the static force,…
  24. The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m). (dx/dt)…
  25. The maximum value of the pressure angle in case of cam is kept as
  26. A slider moves at a velocity v on a link revolving at ω rad/s. The coriolis component of acceleration…
  27. The inversion of a mechanism is
  28. When a body is subjected to transverse vibrations, the stress induced in a body will be
  29. Which of the following governor is used to drive a gramophone?
  30. Which of the following is an open pair?