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There obujects coloured black, gray and ...

There obujects coloured black, gray and white can withstand hostile condition upto `2800^(@)C` These object are throw into a farance where each of them attanit a temperature of `2800^(@)C` Which object will glow brightess?

A

The white object

B

The black object

C

All glow with equal beightness

D

Gray object

Text Solution

Verified by Experts

The correct Answer is:
b
An idea black body absorbs all the radiation incident upon it and has an emissivity equal to i. ,If a black body and an identical another body are kept at the same temperature then the black body will radius maximum power hence the black object at a temparature of `2000^(@)C` will glow brightnest.
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