Question Detail
Question
Two tuning forks have frequencies 256 Hz and 260 Hz. What is the beat frequency if the forks both vibrate at the same time?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Beat frequency (f_beat) is the absolute difference between the frequencies of two sound waves interfering with each other.Given frequencies: f₁ = 256 Hz and f₂ = 260 Hz.f_beat = |f₁ - f₂|f_beat = |256 Hz - 260 Hz|f_beat = |-4 Hz|f_beat = 4 Hz.
Hint
Beat frequency is the absolute difference between the frequencies of the two interfering waves.