Q. In a sinusoidal wave, the time required for a particular point to move from maximum displacement to zero displacement is 0.14s. the frequency of the wave is
A) 0.42 Hz
B) 2.75 Hz
C) 1.79 Hz
D) 0.56 Hz
Explanation
(c) Taken time by the wave to travel a distance equal to one wavelength =0.14×4=0.565
Frequency
$f_{c} = \frac{I}{t} = \frac{1}{0.56}$
$f = \frac{100}{56}$
or
$f = 1.79\ Hz$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.