GravitationHard
Question
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 equalto :- (g = gravitational acceleration)
is equalto :- (g = gravitational acceleration)Options
A.
B.
C.
D.
Solution
T = 2π 
.....(1)
TM = 2π
.....(2)
Y =
ᐃL =
.......(3)
Putting (3) in (2)
solving the equation we get the value of
as
.....(1)TM = 2π
.....(2)Y =
ᐃL =
.......(3)Putting (3) in (2)
solving the equation we get the value of
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