An ideal Black-body at room temperature is thrown into a furnace. It is observed that

Options

A. it is the darkest body at all times
B. it cannot be distinguished at all times
C. initially it is the darkest body and later it become brightest
D. initially it is the darkest body and later it cannot be distinguished

Answer

C

Explanation

When the temperature of black body becomes equal to the temperature of the furnace , the black body will radiate maximum energy and it will be bightest of all initially it will absorb all the radiant energy incident in it. So , it the darkest one.