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Waves

JEE Main level, single correct, medium

79 of 142

Question 79 of 142

A tuning fork of known frequency $256 \mathrm{~Hz}$ makes 5 beats per second with the vibrating string of a piano. The beat frequency decreases to 2 beats per second when the tension in the piano string is slightly increased. The frequency of the piano string before increasing the tension was

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Answer: (A) $256+2 \mathrm{~Hz}$

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JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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More Physics practice

JEE Main Physics practice question on Waves (Vibration of String), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.