A tuning fork sounded together with a tuning fork of frequency $$256$$ emits two beats. On loading the tuning fork of frequency $$256$$, the number of beats heard are $$1$$ per second. The frequency of tuning fork is

Question

Infinity Learn · Accepted Answer

nA $$=$$ Known frequency $$=$$ $$256$$, nB $$=$$ ?x $$=$$ $$2$$ bps, which is decreasing after loading (i$$.e. x↓$$) known tuning fork is loaded so nA↓ Hence nA↓ – nB $$=$$ x↓        ... (i)       →       Correct            nB  – nA↓ $$=$$ x↓      ... (ii)       →       Wrong⇒ nB $$=$$ nA – x $$=$$ $$256$$ – $$2$$ $$=$$ $$254$$ Hz.

A tuning fork sounded together with a tuning fork of frequency 256 emits two beats. On loading the tuning fork of frequency 256, the number of beats heard are 1 per second. The frequency of tuning fork is

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