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Infrasonic, Ultrasonic and Audio waves

input audio s...

Question

input audio signal is given below. which of the following can be amplified audio signal

A

1

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B

2

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C

3

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D

4

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Solution

The correct options are
A
1

C
3

ampification is strengthening electrical signal.when we amplify signal amplitude will increase. thus 1 and 3 signals can be amplified audio signals.

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