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A pendulum clock is 5 seconds fast at a ...

A pendulum clock is 5 seconds fast at a temperature of `15^(@)C` and 10 seconds slow at a temperature of `30^(@)C`. The temperature at which it gives the correct time is

A

`18^(@)C`

B

`20^(@)C`

C

`22^(@)C`

D

`25^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-THERMAL PROPERTIES OF MATTER-EXERCISE-3
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  3. A pendulum clock is 5 seconds fast at a temperature of 15^(@)C and 10 ...

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  4. A pendulum clock gives correct time at 20^(@)C at a place where g=10m/...

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  9. A thin circular metal disc of radius 500mm is set rotating about a cen...

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  14. A vessel contains a liquid filled with 1/10th of its volume. Another v...

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  15. coefficient of real expansion of mercury is 0.18xx10^(-3)//""^(@)C. If...

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  16. Density of a liquid at 0^(@)C is 13.6 gm/c.c., and its coefficient of ...

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  17. A glass bulb of volume 250 c.c is completely filled with mercury at 20...

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  18. The densities of wood and benzene at 0^(@)C are 880 kg m^(-3) and 900 ...

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  19. A vertical glass tube, closed at the bottom contains mercury to a heig...

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