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Ratio of thermal capacities of two coppe...

Ratio of thermal capacities of two copper spheres of radii 5 cm and 10 cm is

A

`1:4`

B

`1:1`

C

`1:8`

D

`8:1`

Text Solution

Verified by Experts

The correct Answer is:
C
`(C_(1))/(C_(2))=(rhoV_(1))/(rhoV_(2))=((4pi)/(3)r_(1)^(3))/((4pi)/(3)r_(2)^(3))=((r_(1))/(r_(2)))^(3)`
`=((5)/(10))^(3)=((1)/(3))^(3)=(1)/(8)`.
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