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Question

Two waves generated from incoherent sources, are propagating on a stretched string.

Statement 1: The resultant wave can be obtained by using the principle of superposition of waves.
Statement 2: Principle of superposition of waves is not applicable on the wave obtained from incoherent sources.

A
Statement 1 is true, statement 2 is false
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B
Statement 1 is false, statement 2 is true
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C
Both the statements are true.
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D
Both the statements are false.
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Solution

The correct option is A Statement 1 is true, statement 2 is false
The principle of superposition is valid for all waves irrespective of their source.
However if the source of wave are coherent, then a much pronounced interference pattern is observed. Such an interference is sustained.
The interference of waves from incoherent sources is not sustained.

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