Q. Two tuning fork of frequency $n_{1}$and $n_{2}$ produces n beats per second. If $n_{2}$ and n are known, $n_{1}$may be given by
A) $\frac{n_{2}}{n} + n_{2}$
B) $n_{2}n$
C) $n_{2} \pm n$
D) $\frac{n_{2}}{n} - n_{2}$
Explanation
(c) Beat frequency =number of beats/s.
$n = n_{2} \pm n_{1}$
$\therefore n_{1} = n_{2} \pm n$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.