Wave Mechanics Question 904
Question: Beats are produced with the help of two sound waves of amplitudes 3 and 5 units. The ratio of maximum to minimum intensity in the beats is
[MP PMT 1999]
Options:
A) 2 : 1
B) 5 : 3
C) 4 : 1
D) 16 : 1
Show Answer
Answer:
Correct Answer: D
Solution:
$ \frac{{I _{\max }}}{{I _{\min }}}={{( \frac{a _{1}+a _{2}}{a _{1}-a _{2}} )}^{2}}=\frac{{{(5+3)}^{2}}}{{{(5-3)}^{2}}}=\frac{16}{1} $
BETA
