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Question

Mark the incorrect difference between musical sound and noise


A
Musical sound is a periodic disturbance whereas noise is non-periodic disturbance
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B
A musical sound has no sudden change in amplitude or loudness whereas noise has very often, irregular sudden changes in amplitude or loudness or both
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C
Musical sound has no sense of continuity whereas reverse is true for noise
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D
None
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Solution

The correct option is C Musical sound has no sense of continuity whereas reverse is true for noise

Musical sound:

1. It is a periodic disturbance that repeats itself at regular intervals.

2. There is no sudden change in amplitude or loudness.

3. It is sufficiently rapid so that it can be ensured as a sense of continuity.

Noise:

1. It is a non-periodic disturbance.

2. There are, very often, irregular sudden changes in amplitude or loudness, or both.

3. There is no sense of continuity.


Physics

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