An object produces 30,000 vibrations in a minute. What is the frequency of the sound produced?

450 H z

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480 H z

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500 H z

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548 H z

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Solution

The correct option is C
$500 H z$
Given, number of vibrations produced $= 30, 000$
Time taken $t = 1 m i n u t e = 1 \times 60 = 60 s$
We know, $F r e q u e n c y = \frac{n u m b e r o f v i b r a t i o n s}{t o t a l t i m e i n s e c o n d s}$ $= \frac{30000}{60}$ $= 500 H z$

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