A pendulum makes perfectly elastic collision with block of m lying on a frictionless surface attached to a spring of force constant k. Pendulum is slightly displaced and released. Time period of oscillation of the system is

A pendulum makes perfectly elastic collision with block of m lying on

1.	A pendulum makes perfectly elastic collision with block of m lying on a frictionless surface attached to a spring of force constant k. Pendulum is slightly displaced and released. Time period of oscillation of the system is
Answer» `2PI [sqrt((l)/(g)) + sqrt((m)/(k))]` `PI [sqrt((l)/(g)) + sqrt((m)/(k))]` `2pi sqrt((l)/(g))` `2pi sqrt((m)/(k))` Answer :B

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A pendulum makes perfectly elastic collision with block of m lying on a frictionless surface attached to a spring of force constant k. Pendulum is slightly displaced and released. Time period of oscillation of the system is

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