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The potential energy of a simple harmonic oscillator at mean position is 3 J. If its mean K.E. is 4 J, its total energy will be,

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Important Questions on Simple Harmonic Motion

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The total energy of a harmonic oscillator of mass 2 kg is 9 joules. If its potential energy at mean position is 5 joules, its K.E.. at the mean position will be:
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A horizontal spring is connected to a mass M. It executes simple harmonic motion. When the mass M passes through its mean position, an object of mass m is put on it and the two move together. The ratio of frequencies before and after will be:
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Two particles A and B of equal masses are suspended from two massless springs of spring constants k1 and k2, respectively. If the maximum velocities, during oscillations are equal, the ratio of amplitudes of A and B is
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The period of oscillation of a simple pendulum of length L suspended from the roof of a vehicle which moves without friction down an inclined plane of inclination α is given by

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A simple pendulum has time period T1. The point of suspension is now moved upward according to the relation y=kt2,k=1 m s-2 where y is the vertical displacement. The time period now becomes T2. The ratio of T12T22 is g=10 m s-2
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Two waves Y1=asinωt and Y2=asinωt+δ are producing interference. Then, the resultant intensity is,
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Assertion: pendulum clocks go slow in summer and fast in winter.

Reason: The length of the pendulum used in the clock increases in summer.

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Assertion: A simple pendulum is mounted on a truck that moves with constant velocity The time period of the pendulum will increase.

Reason: The effective length of the pendulum will decrease.