Question

An ideal black body is a ____________________________________________.

A metal coated with a black dye
B glass surface coated with coal tar
C lump of charcoal heated to a higher temperature
D hollow enclosure blackened inside, having a small hole​

Answer 1

Answer:

Metal coated with black dye

Answer 2

Answer:

The best ideal black body is example

A body is said to be a black body if it perfectly absorbs and radiates the energy but does not reflect it. A pin hole box is an ideal black body. Black board and kajal although black in colour need not to be black body.