NEET UG PHYSICS MCQ: WAVES

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Application +4 | -1

A string under a tension of

129.6 \mathrm{~N}

produces 10 beats/s when it is vibrated along with a tuning fork. When the tension in the string is increased to

160 \mathrm{~N}

, it sounds in unision with the same tuning fork. Calculate the fundamental frequency of the tuning fork.

View answer and explanation

Correct option: A

100

Option A (100) is correct because the fundamental frequency of the tuning fork is calculated by considering the change in frequency of the string due to the change in tension and the resulting beat frequency.

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