wave_mechanics Beats Question 50
Question: The disc of a siren containing 60 holes rotates at a constant speed of 360 rpm. The emitted sound is in unison with a tuning fork of frequency
[KCET 2005]
Options:
A) 10 Hz
B) 360 Hz
C) 216 Hz
D) 6 Hz
Show Answer
Answer:
Correct Answer: B
Solution:
Frequency $ =\frac{360}{60}\times 60=360Hz.
$
BETA
