CGPET 2016 Solved Paper

Section: Physics

Question : 4 of 150

Marks: +1, -0

A pendulum made of a uniform wire of cross-sectional area A has time period T. When anadditional mass M is added to its bob, thetime period changes to TM . If the Young’smodulus of the material of the wire is Y , then
1
Y
is equal to (g= gravitational acceleration)

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

Validate

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