﻿ A tuning fork produces 4 beats per second when sounded with a sonometer of vibrating length 48 cm. It produces 4 beats per second also when the vibrating length is 50 cm. What is the frequency of the tuning fork? : Kaysons Education

# A Tuning Fork Produces 4 Beats Per Second When Sounded With A Sonometer Of Vibrating Length 48 Cm. It Produces 4 Beats Per Second Also When The Vibrating Length Is 50 Cm. What Is The Frequency Of The Tuning Fork?

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## Question

### Solution

Correct option is

196 Hz

Let V1 be the frequency of the wire when its vibrating length is L1 = 48 cm and V2 when L2 = 50 cm. Since  If V is the frequency of the tuning fork, then

Which gives V = 196 Hz.

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