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A solid sphere and a hollow sphere of same material have same mass. When they are heated by 50°C, increase in volume of solid sphere is 5 c.c. The expansion of hollow sphere is

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5 c.c.

more than 5 c.c.

Less than 5 c.c.

None

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detailed solution

Correct option is B

Volume V =Also due to a rise in temperature Δt , final radius rt =r0 (1+αΔt)Since the spheres have same mass and they are made of same material , the hollow sphere has larger radius.Hence its expansion will be more.

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A vessel having coefficient of cubical expansion $γ_{g}$ contains liquid Of coefficient of real expansion r_R up to certain level. When Vessel
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