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 -

Question

Dr. Abubacker · Accepted Answer

[Solution from source] Wien's displacement law, λₘT = constant, says that the wavelength of maximum emission shifts to shorter values as temperature rises, so the colour changes from red towards yellow and white. Stefan's law gives only the total power radiated, not the colour. Answer (2).

Q. 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 -

Explanation

Reviewed by Dr. Abubacker

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