Answers

2015-09-24T20:31:07+05:30
Because the pendulum has the string for oscillation to rotations that is the reason pendulum does not produce sound
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2015-09-24T20:32:22+05:30
The frequency of vibrations produced by a pendulum does not fall under human ear's audible range, so we do not hear the sound produced due to these vibrations.
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