Q. The frequency of a tuning fork is $384$ per second and velocity of sound in air is $352\ m/s.$ How far the sound has traversed while fork completes 36 vibration
A) $3\ m$
B) $13\ m$
C) $23\ m$
D) $33\ m$
Explanation
(d) $\lambda = \frac{v}{n} = \frac{352}{384};$ during 1 vibration of fork sound will
travel $\frac{352}{384}m;$ during 36 vibration of fork sound will
travel $\frac{352}{384} \times 36 = 33\ m$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.