A pendulum clock keeps correct time at `0^(@)C`. Its mean coefficient of linear expansions is `alpha//.^(@)C`, then the loss in seconds per day by the clock if the temperature rises by `t^(@)C` isA. `((1)/(2)alpha txx864000)/(1-(alpha t)/(2))`B. `(1)/(2)alpha txx86400`C. `((1)/(2)alpha t xx86400)/((1-(alpha t)/(2))^(2))`D. `((1)/(2)alpha t xx86400)/(1+(alpha t)/(2))`

A pendulum clock keeps correct time at `0^(@)C`. Its mean coefficient

1.	A pendulum clock keeps correct time at `0^(@)C`. Its mean coefficient of linear expansions is `alpha//.^(@)C`, then the loss in seconds per day by the clock if the temperature rises by `t^(@)C` isA. `((1)/(2)alpha txx864000)/(1-(alpha t)/(2))`B. `(1)/(2)alpha txx86400`C. `((1)/(2)alpha t xx86400)/((1-(alpha t)/(2))^(2))`D. `((1)/(2)alpha t xx86400)/(1+(alpha t)/(2))`
Answer» Correct Answer - B

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