NEET Physics Beats MCQ Question
Which of the following statements about beats is correct?
The beat frequency is the absolute difference between the frequencies of two waves.
Beats occur only when two waves have the same frequency.
Increasing the tension in a string always increases the beat frequency.
Beats result from the interference of two waves with different amplitudes only.
Correct Answer
Detailed Explanation
The beat frequency is defined as the absolute difference between the frequencies of two waves, as shown in the context where ν beat = ν 1 – ν 2. Options B, C, and D reflect common misconceptions about the conditions for beats.
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