JEE PHYSICS MCQ: OSCILLATIONS

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Statement-I: During the oscillation of a simple pendulum the tension in string is greatest at the mean position.
Statement-II: At the mean position the centripetal acceleration of the bob is maximum.

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Correct option: A

Statement-I

\&

Statement-II are true

Option A (Statement-I

\& Statement-II are true) is correct because the tension is maximum at the mean position due to the combined effect of weight and centripetal force, and the centripetal acceleration is also maximum at the mean position due to maximum velocity.

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Assertion: A particle executing simple harmonic motion comes to rest at the extreme positions.

Reason: The resultant force on the particle is zero at these positions. A particle is subjected simultaneously to two SHM’s one along the

x

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y

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a

. When the PE of a particle is one-fourth of its maximum value during the oscillation, its displacement from the equilibrium position will be The displacement, velocity and acceleration in a simple harmonic motion are related as the Assertion: Angular velocity of earth around sun is lesser than the angular velocity of moon about earth.
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SHM

. At a displacement

{y_1}

its potential energy is

{U_1}

and at a displacement

{y_2}

its potential energy is

{U_2}

. The potential energy of the particle at displacement

\left( {{y_1} + {y_2}} \right)