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A microphone is connected to a cathode r...

A microphone is connected to a cathode ray oscilloscope. A loudspeaker giving a single note is switch on . The trace shown in the figure appears on the screen.
Which of the following the softer but same frequency note of the given note ?

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
The sound wave having less amplitude will be softer.
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