NEET UG PHYSICS MCQ: WAVES

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Analyzing +4 | -1

Tuning fork

{F_1}

has a frequency of

256\,\,Hz

and it is observed to produce

6\mathrm{ }beats/second

with another tuning fork

{F_2}

. When

{F_2}

is loaded with wax, it still produces

6\mathrm{ }beats/second

with

{F_1}

. The frequency of

{F_2}

before loading was

View answer and explanation

Correct option: B

262\,\,Hz

Option B (

262\mathrm{ }Hz

) is correct because adding wax decreases the frequency, and the number of beats remained the same, indicating the original frequency was higher than 256 Hz.

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