Q. In a sinusoidal wave, the time required for a particular point to move from maximum displacement to zero displacement is $0.170\ second.$ The frequency of the wave is
A) $1.47\ Hz$
B) $0.36\ Hz$
C) $0.73\ Hz$
D) $2.94\ Hz$
Explanation
(a) Time required for a point to move from maximum displacement to zero displacement is
$t = \frac{T}{4} = \frac{1}{4n}$
$\Rightarrow n = \frac{1}{4t} = \frac{1}{4 \times 0.170} = 1.47\ Hz$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.