Take two plates A and B of same metal. Polish surface of A with black colour and surface of B with white colour. Take one electric heater and put polished black plate and white plate on vertical stand in such a way that polished black plate and white plate face the heater. Ensure that polished plates are equidistant from the heater. Fix one cork each with wax on the uncoated sides (back side) of the plates. Observe and comment which surface absorbs heat radiations more quickly; Black Plate Surface or White Plate Surface.
