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A piece of iron is heated in a flame. It...

A piece of iron is heated in a flame. It first becomes dull red then becomes reddish yellow and finally turns to white hot. The correct explanation for the above observation is possible by using.

A

Setfan's law

B

Wien's displacement law

C

Kirchhoff's law

D

Newton 's law of cooling

Text Solution

Verified by Experts

The correct Answer is:
B
The equation of Wien 's displacement law , i.e `lamda_(m)T` = constant.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-KINETIC THEORY OF GASES ANDRADIATION-MHT CET Corner
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