JEE Main 2015 Question Paper

Section: Physics

Question : 67 of 90

Marks: +1, -0

A pendulum made of a uniform wire of cross sectional area A has time period T. When an additional mass M is added to its bob, the time period changes to TM. If the Young’s modulus of the material of the wire is Y then

is equal to : (g = gravitational acceleration)

[Main 2015]

[(
TM
T
)2−1]
Mg
A
[1−(
TM
T
)2]
A
Mg
[1−(
T
TM
)2]
A
Mg
[(
TM
T
)2−1]
A
Mg

Validate

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