Q. A tuning fork makes 256 vibrations per second in air. When the velocity of sound is $330\ m/s,$ then wavelength of the tone emitted is
A) $0.56\ m$
B) $0.89\ m$
C) $1.11\ m$
D) $1.29\ m$
Explanation
(d) $v = n\lambda \Rightarrow \lambda = \frac{v}{n} = \frac{330}{256} = 1.29m$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.