Two tunning forks A and B produce notes of frequencies 256 Hz & 262 Hz respectively.
Channel: Doubtnut
Date: 2020-01-26

Two tunning forks A and B produce notes of frequencies 256 Hz & 262 Hz respectively. An unknown note sounded at the same time with A produce beats. When the note is sounded with B, beats frequency is twice as large. The unknown frequency could be