Question

A copper disc has a hole. If the disc is heated, the size of the hole -

Q: Answer-A copper disc has a hole. If the disc is heated, the size of the hole -

Whenametalplatewithacircular holeatits centreisheated,definitelyalongwith the areal expansion of the plate the diameter sum of two radii of the circular hole also increases.

A increases

B decreases

C No change

D first increases and than decreases

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A copper disc has a hole. If the disc is heated, the size of the hole -

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