Physics · 2021
JEE Main · 26 February 2021, Shift 2 · Q3
A tuning fork A of unknown frequency produces 5 beats / s with a fork of known frequency 340 Hz. When fork A is filed, the beat frequency decreases…
A tuning fork A of unknown frequency produces $\displaystyle 5$ beats $\displaystyle / \mathrm{s}$ with a fork of known frequency $\displaystyle 340$ Hz. When fork A is filed, the beat frequency decreases to $\displaystyle 2$ beats/s. What is the frequency of fork A ?
Official answer
(1)
$\displaystyle 335$ Hz
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.