Q. If the velocity of sound in air is $350\ m/s.$ Then the fundamental frequency of an open organ pipe of length $50\ cm,$ will be
A) $350\ Hz$
B) $1.75\ Hz$
C) $900\ Hz$
D) $750\ Hz$
Explanation
(a) Fundamental frequency of open pipe
$n_{1} = \frac{v}{2l} = \frac{350}{2 \times 0.5} = 350\ Hz$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.