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The bob of a simple pendulum is a spheri...

The bob of a simple pendulum is a spherical hollow ball filled with water. A plugged hole near the bottom of the oscillating bob gets suddenly unplugged. During observation, till water is coming out, the time period of lscillation would.

A

T decreases first and then increases

B

T increases first and then decreases

C

T increases throughout

D

T does not change

Text Solution

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The correct Answer is:
B
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The bob of a simple pendulumis a ball full of water. If a fine hole is made in the bottom of the ball, what will be its effect on the time period of the pendulum?

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Knowledge Check

  • The bob of simple pendulum is a spherical hollow ball filled with water. A plugged hole near the bottom of the oscillating bob get suddenly unplugged. During observation, till water is coming out, the time period of oscillation would

    A
    first increase and then decrease to the original value
    B
    first decrease and then increase to the original value
    C
    remain unchanged
    D
    increase towards a saturation value

  • The bob of a simple pendulum is a hollow cylinder, with a small hole in the bottom. It is filled with sand and set into oscillation. Its periodic time (T) is measured at regular intervals. As the sand starts coming out we find that

    A
    T increases with time
    B
    T does not change with time
    C
    T first decrases and then increases
    D
    T first increases and then decreases

  • Assertion: The bob of a simple pendulum is a full of water if a fine hole is made at the bottom of the of the ball , then the time period will no more remain constant Reason : The time period of simple pendulum does not depend open mass

    A
    If both assertion and reason are true and the reasopn is correct explanation of the assertion
    B
    If both assertion and reason are true and but not the correct explanation of assertion
    C
    If assertion is true but the reason is false
    D
    If both assertion and reason are false

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