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A revolving ring in a siren revolves 420...

A revolving ring in a siren revolves `420` times per minute and it produces `2` beats per second with a tuning fork of frequency `348 Hz`. Choose the correct statement from the following.

A

No. of hole in ring `=49`.

B

No. of hole in ring `=50`.

C

Frequency of siren is `350 Hz`.

D

Frequency of siren is `342 Hz`.

Text Solution

AI Generated Solution

To solve the problem step by step, we will first determine the frequency of the siren and then calculate the number of holes in the revolving ring. ### Step 1: Determine the frequency of the siren We know that the number of beats produced is the absolute difference between the frequency of the siren (n1) and the frequency of the tuning fork (n2). Given: - Frequency of the tuning fork, \( n_2 = 348 \text{ Hz} \) - Number of beats per second = 2 ...
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