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Assertion : If a pendulum is suspended in a lift and liftis fallingfreely , then its time period becomesinfinite. Reason : Free fallingbody has acceleration equal to acceleration due to gravity .

Answer»

Both assertion and reason are true and reason explains assertion correctly.
Both assertion and reason are true and reason does not explain assertion correctly.
Both assertion and reason are false.
Assertion is true but reason is false.

Solution :Assertion:When a pendulum falls freely its accelerationn is ZERO.
`thereforeT=2pisqrt((l)/(0))="infinite"`
Reason:For a FREE falling BODY ACCELERATION is equal to `sqrt(g)`.


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