Question

Pairs of tuning forks with their frequencies are listed below. Which of the following pair can produce beats?

• A. 256 Hz and 512 Hz
• B. 256 Hz and 261 Hz
• C. 512 Hz and 512 Hz
• D. 256 Hz and 256 Hz

Answer 1

Answer:

B. 256 Hz and 261 Hz

• Beats are produced by the interference of two sound waves of slightly different frequencies.

• The number of beats heard per second is equal to the difference between their frequencies.

• the frequency difference is 5Hz.which will produce 5 beats per second.