A pendulum made of a uniform wire of cross sectional area … has time period … When an additional mass … is added to its bob, the time period changes to … If the Young's modulus of the material of the wire is … then … is equal to : (… … …)

Option C. As we know, time period, …

Simple Harmonic Motion

JEE Main 2015 · Session, Shift 1 · Q8187

PhysicsMedium100×since 2002Q8187

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

{T_{M.}}

If the Young's modulus of the material of the wire is

Y

then

{1 \over Y}

is equal to : (

g=

gravitational

acceleration

)