COMEDK · Physics · 16. Waves and Sound
A tuning fork of unknown frequency produces 4 beats with tuning fork of frequency \(310 \mathrm{~Hz}\). It gives the same number of beats on filing. The initial frequency of a tuning fork is
- A 306 Hz
- B 620 Hz
- C 310 Hz
- D 314 Hz
Answer & Solution
Correct Answer
(A) 306 Hz
Step-by-step Solution
Detailed explanation
The unknown fork produces 4 beats with 310 Hz, so its frequency is either 314 Hz or 306 Hz. Filing increases frequency (removes mass). The beat frequency remains 4 after filing. If initial frequency was 314 Hz: filing increases it further \(\Rightarrow\) difference with 310 Hz…
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