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A pendulumd made of a uniform wire of cr...

A pendulumd made of a uniform wire of cross sectional area (A) has time T.When an additionl mass (M) is added to its bob, the time period changes to `T_(M). If the Young's modulus of the material of the wire is (Y) then `1/Y` is equal to:

A

`[((T_M)/(T))^2-1](A)/(Mg)`

B

`[((T_M)/(T))^(2)-1 ](Mg)/(A)`

C

`[1-((T_M)/(T))^(2)](A)/(Mg)`

D

`[1-((T)/(T_M))^(2)](A)/(Mg)`

Text Solution

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The correct Answer is:
A
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