Q. With reference to “Foucault’s pendulum” consider the following statements:
1.The period of rotation of the pendulum depends on the latitude of the pendulum and the length of the pendulum.
2.The pendulum works on the principle of conservation of liner momentum.
3.The longest Foucault pendulum in the world is located in the National Museum of Natural History in Paris.
Which of the statements given above are correct?

[A] 1 and 2 only

[B] 2 and 3 only

[C] 1 and 3 only

[D] 1, 2 and 3

Answer: C
Notes:

Explanation –

Statement 1 and 3 are correct. The period of rotation of the Foucault pendulum depends on the latitude of the pendulum and the length of the pendulum. The longest Foucault pendulum in the world is located in the National Museum of Natural History in Paris.

Statement 2 is incorrect. The pendulum works on the principle of conservation of angular momentum.

Source: India Today

 

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