A pendulum clock keeps correct time at $0\,^oC$. The thermal coefficient of linear expansion of the material of the pendulum is $\alpha $. If the temperature rises to $t\,^oC$, then the clock loses per day by (in second)
A pendulum clock keeps correct time at $0\,^oC$. The thermal coefficient of linear expansion of the material of the pendulum is $\alpha $. If the temperature rises to $t\,^oC$, then the clock loses per day by (in second)
- A
$\alpha t$
- B
$\frac{1}{2}\alpha t$
- C
$\alpha t \times 86400$
- D
$\frac{1}{2}\alpha t \times 86400$
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