1.

A square metal plate with a hole is at temperature `theta` is present on smooth horizontal surface. Point `P & C` are marked on the plate, where C is centre of mass of the plate with the hole shown. When temperature of the plate is increased then the point. A. P-shifts towards leftB. P shifts towards rightC. C shifts towards leftD. C shifts towards right

Answer» Seperation between points on plate increases due to thermal expansion.
centre of mass will not move without external force.


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