NEET UG PHYSICS MCQ: WAVES

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Understanding +4 | -1

Beats are produced by two travelling waves each of loudness

I

and nearly equal frequencies

{n_1}

and

{n_2}

. The beat frequency will be and maximum loudness hard will be

View answer and explanation

Correct option: B

\left( {{n_1} - {n_2}} \right),4I

Option B (

\left( {{n_1} - {n_2}} \right),4I

) is correct because the beat frequency is the difference between the two frequencies, and the maximum loudness is proportional to the square of the sum of the amplitudes, resulting in 4I.

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