Q. The first overtone of a stretched wire of given length is $320\ Hz.$ The first harmonic is
A) $320\ Hz$
B) $160\ Hz$
C) $480\ Hz$
D) $640\ Hz$
Explanation
(b) Frequency of first overtone or second harmonic $\left( n_{2} \right) = 320\ Hz.$ So, frequency of first harmonic
$n_{1} = \frac{n_{2}}{2} = \frac{320}{2} = 160Hz$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.