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Question

Find the correct alternative(s) among the following, that can be deduced from the graph.


A
Sound wave 1 is more shrill than sound wave 2.
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B
Sound wave 2 is more shrill than sound wave 1.
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C
Sound wave 2 is louder than sound wave 1.
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D
Sound wave 1 is louder than sound wave 2.
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Solution

The correct option is D Sound wave 1 is louder than sound wave 2.
For a sound wave,
Loudness Amplitude and Pitch frequency.

From the graph given in the question, sound wave 2 has higher frequency than the sound wave 1. so the pitch of the sound wave 1 is less than that of the sound wave 2.

and amplitude of sound wave 1 is more than the amplitude of sound wave 2. So, the loudness of sound wave 1 is greater than the loudness of sound wave 2.

Thus, options (b) and (d) are the correct answers.

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