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a
The greater the mass of a pendulum bob, the shorter is its frequency of oscillation
b
A simple pendulum with a bob of mass M swings with an angular amplitude of 40o. When its angular amplitude is 20o, the tension in the string is less than Mgcos20o.
c
As the length of a simple pendulum is increased, the maximum velocity of its bob during its oscillation will also decreases
d
The fractional change in the time period of a pendulum on changing the temperature is independent of the length of the pendulum
answer is C.
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