A pendulum is oscillating about its mean position(B) as shown in the following figure. A and C are the extreme positions of the pendulum during its to and fro motion. The displacement of the pendulum from the position B to the position C, or A, is called ______.

frequency

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wavelength

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amplitude

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pitch

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Solution

The correct option is C amplitude
The maximum displacement of a particle from its mean position is called its amplitude. Here, as the mean position of the pendulum is B, and the maximum displacement of the pendulum on left side is C and right side is A. Therefore, the displacement of pendulum from B to A, or from B to C, is its amplitude.

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