A piece of blue glass heated to a high temperature and a piece of red glass at room temperature, are taken inside a dimly lit room then

Options

A. the blue piece will look blue and red will look as usual
B. red looks brighter red and blue looks ordinary blue
C. blue shines like brigher red compared to the red piece
D. Both the pieces will look equally red

Answer

C

Explanation

According to stefan's law, the energy emitted by a body per second is directly proportional to the fourth power of the temperature of the bod. Here, the temperature of blue glass is more than that of red glass, so it will look brighter.