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
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5
Answer:
Metal coated with black dye
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0
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.
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