Wave Mechanics Beats Question 8

Question: Two tuning forks have frequencies 450 Hz and 454 Hz respectively. On sounding these forks together, the time interval between successive maximum intensities will be

[MP PET 1989; MP PMT 2003]

Options:

A) 1/4 sec

B) 1/2 sec

C) 1 sec

D) 2 sec

Show Answer

Answer:

Correct Answer: A

Solution:

The time interval between successive maximum intensities will be $ \frac{1}{n _{1}\tilde{\ }n _{2}}=\frac{1}{454-450}=\frac{1}{4}\sec .

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