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Three objects coloured black, gray and w...

Three objects coloured black, gray and white can withstand hostile conditions upto `2800^(@)C`. These objects are thrown into a furance where each of them attains a temperature of `2000^(@)C`. Which object will glow brightest?

A

the white object

B

the black object

C

all glow with equal brightness

D

gray object.

Text Solution

Verified by Experts

The correct Answer is:
B
Black object. That which cab absorb maximum can aslo maximu. (Kirochoff's law.)
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AIIMS PREVIOUS YEAR PAPERS-AIIMS 2006-PHYSICS
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