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A pendulum clock gives correct time at `20^C`at a place where g`=9.800 m s^(-2)`.The pendulum consists of a light steel rod connected to a heavy ball. It is taken to a different place where g`=9.788 m s^(2)`. At what temperature will it give correct time ? coefficient of linear expansion of steel `= 12 xx 10^(-6) 0^C(-1)`.

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A pendulum clock gives correct time at 20^@C at a place where g=9.800 m s^(-2) .The pendulum consists of a light steel rod connected to a heavy ball. It is taken to a different place where g=9.788 m s^(-2) . At what temperature will it give correct time ? coefficient of linear expansion of steel = 12 xx 10^(-6)C^(-1) .

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