NEET UG PHYSICS MCQ: WAVES

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Understanding +4 | -1

Two tuning forks of frequency

{n_1}

and

{n_2}

produces n beats per second. If

{n_2}

and n are known,

{n_1}

may be given by

View answer and explanation

Correct option: C

{\mathrm{n}_2} \pm \mathrm{n}

Option C (

{\mathrm{n}_2} \pm \mathrm{n}

) is correct because the beat frequency is the absolute difference between the two frequencies, so

{n_1}

can be either higher or lower than

{n_2}

by n.

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