1.

Assertion (A) : The pitch of the sound produced by the vibrating string can be changed. Reason (R) : The pitch of the sound can be changed by changing the length, tension and thickness of the vibrating string.

Answer»

Both A and R are correct and R is the correct EXPLANATION of A.
Both A and R are correct but R is not the correct explanation of A.
A is correct and R is incorrect.
Both A and R are incorrect.

Solution :The pitch of the sound produced by a vibrating string can be CHANGED by changing the LENGTH, tension and thickness of the vibrating string. So, R is the correct explanation or reason for A.


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