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If force and length increases by 4 times...

If force and length increases by 4 times, then energy becomes 16 times.

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Knowledge Check

  • Time period of a simple pendulum is 2s. If its length is increased by 4 times, then its period becomes……….

    A
    `16s`
    B
    `12s`
    C
    `8s`
    D
    `4s`

  • The length of a spring is increased by 2.5 cm the elastic potential energy stored in the spring is U . If the length is increased by 5 cm its elastic potential energy become ……

    A
    `U/2 `
    B
    4U
    C
    2U
    D
    `U/4`

  • In a reactdion A to B, if the concentration of reactant is increased by 9 times then rate of reaction increases 3 times. What is the order of reaction?

    A
    2
    B
    3
    C
    `1/2`
    D
    `1/3`

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    If kinetic energy of an electron is increased by nine times, the wavelength associated with it would become ...........

    If the angular speed of earth increases two times then the acceleration of gravity (g) at north pole becomes .......

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