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Suppose a tunnel is dug along a diameter of the earth. A particle is dropped from a point at a distance h directly above the tunnel. The motion of the particle as seen from the earth will be,

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Important Questions on Oscillations

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Physics
IMPORTANT
The length of a simple pendulum is increased by 69%. The percentage change in its time period is
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Physics
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The displacement versus time curve for a particle executing SHM is shown in figure. Choose the correct statement(s).

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Physics
IMPORTANT
Which of the following statements is/are true for a simple harmonic oscillator?
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Physics
IMPORTANT
A coin is placed on a horizontal platform which undergoes vertical simple harmonic motion of angular frequency ω.The amplitude of oscillation is gradually increased. The coin will leave contact with the platform for the first time :
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Physics
IMPORTANT
Which of the following will change the time period as they are taken to the moon?
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Physics
IMPORTANT

A particle starts from point x=-32A and move towards negative extreme as shown. If the time period of oscillation is T, then,

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Physics
IMPORTANT

A simple pendulum of length 1 m is displaced by an angle 2° from its mean position and released from rest. It collides elastically with a wall which is inclined at an angle of 1° with vertical on other side of mean. Its time period (in sec) of motion is x3, what is the value of x? (Take: g=π2)

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Physics
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Two blocks of mass 30 kg&60 kg are connected to each other with springs in natural length on a smooth ground as shown in figure. An impulse is provided to both blocks in outward direction. The minimum time (in sec) after which the springs are in their maximum elongation position is πn, what is the value of n?

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