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We have a hollow sphere and a solid sphe...

We have a hollow sphere and a solid sphere equal radii and of the same material. They are heated to raise their temperature be equal amounts. How will the cange in their volumes, due to volume expansions, be related? Consider two cases (i) hollow sphere is filled with air, (ii) there is vaccum inside the hollow sphere.

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The correct Answer is:
(i) hollow sphere `gt` solid sphere
(ii) hollow sphere = solid sphere
When hollow sphere is filled air, expansion will be due to pressure of the gas also.
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