There is a rectangular metal plate in which two cavities in the shape of rectangle and circle are made

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There is a rectangular metal plate in which two cavities in the shape of rectangle and circle are made, as shown with dimensions. P and Q are centres of these cavities. On heating the plate, which of the following quantities increase?
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Sep
There is a rectangular metal plate in which two cavities in the shape of rectangle and circle are made, as shown with dimensions. P and Q are centres of these cavities. On heating the plate, which of the following quantities increase? as shown with dimensions. P and Q are centres of these cavities. On heating [...]
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Tags: as shown with dimensions. P and Q are centres of these cavities. On heating the plate , There is a rectangular metal plate in which two cavities in the shape of rectangle and circle are made , which of the following quantities increase? ,