A tuning fork of frequency 512 Hz makes 4 beats//s with the vibrating string of a piano.
Channel: Doubtnut
Date: 19/01/2020

A tuning fork of frequency 512 Hz makes 4 beats//s with the vibrating string of a piano. The beat frequency decreases to 2 beats//s when the tension in the piano string is slightly increased.The frequency of the piano string before increasing the tension was