**Assertion:** In the relation f= 1 2l T/m , where the symbols have their usual meaning, m represents linear mass density. **Reason:** The frequency has the dimensions of inverse time.

JEE Main Physics question

**Assertion:** In the relation , where the symbols have their usual meaning, represents linear mass density. **Reason:** The frequency has the dimensions of inverse time.

(A)Assertion is True, Reason is True; Reason is correct explanation for Assertion
(B)Assertion is True, Reason is True; Reason is not correct explanation for AssertionCorrect
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is True

Answer: (B)

Solution

In this standard formula for the fundamental frequency of a stretched string, is indeed the linear mass density, so the Assertion is true. The Reason is also

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Question ID VK-157512