First slide

Simple harmonic motion

Question

If iron sphere is replaced by wooden sphere of same mass, time period of simple pendulum

Easy

A

increases
B

decreases
C

remains same
D

none of the above

Solution

it remains same because 'Time period' doesnot depend on mass
formula for time period $T = 2 π \sqrt{\frac{l}{g}}$
T=time period
l=length of simple pendulum
g= acceleration due to gravity
Time period depends on length and acceleration due to gravity

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