Question

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

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

Answer 1

The correct option is C

initially it is the darkest body and at later times the brightest

Black body is good absorber and good emitter of heat.