Physics-Beats
NEET Physics Beats MCQ Question
Type: MCQ-diagram based-Hard-Class 11
Consider a diagram showing two harmonic waves with frequencies 11 Hz and 9 Hz overlapping, resulting in a wave where the amplitude varies over time. What feature of this resultant wave is directly related to the beat frequency?
A
The rate at which the amplitude reaches maximum and minimum values.
B
The average amplitude of the resultant wave.
C
The frequency of the individual waves combined.
D
The phase difference between the two waves.
Correct Answer
Option A
Detailed Explanation
The beat frequency is determined by the rate at which the amplitude of the resultant wave reaches maximum and minimum values, as it is the difference between the frequencies of the two waves (11 Hz - 9 Hz = 2 Hz).
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