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The bob of a pendulum is made of hollow ...

The bob of a pendulum is made of hollow brass sphere. What happens to the time period of the pendulum, if the bob is filled with water completely? Why?

Text Solution

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If the hollow brass sphere is completely filled with water, then time period of simple pendulum does not change. This is because time period of a pendulum is independent of mass of the bob.
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The bob of a pendulum is made of a hollow brass sphere. What happens to the time period of the pendulum, if the bob is filled with water completely ? Why ?

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Knowledge Check

  • The bob of a pendulum is released from a horizontal position. If the length of the pendulum is 1.5m, what is the speed with which the bob arrives at the lowermost point, given that it dissipated 5% of its initial energy against air resistance ?

    A
    `5.285 ms^(-1)`
    B
    `6 ms^(-1)`
    C
    `4 ms^(-1)`
    D
    `3 ms^(-1)`

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