Question

When two tuning forks are sounded together, 6 beats per second are heard. One of the fork is in unison with $0.70 \text{ m}$ length of sonometer wire and another fork is in unison with $0.69 \text{ m}$ length of the same sonometer wire. The frequencies of the two tuning forks are}

• A. 320 Hz, 326 Hz
• B. 414 Hz, 420 Hz
• C. 420 Hz, 426 Hz
• D. 480 Hz, 486 Hz

Hint:

Shorter wire length always corresponds to a higher frequency.

Answer 1

The Correct Option is B