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 .
$