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Questions  

Variation of radiant energv emitted by sun. filament of tungsten lamp and welding arc as a function of its wavelength is shown in figure. Which of the following option is the correct match?

a
Sun -T1,  tungsten filament -T2, welding arc -T3,
b
Sun-T2, tungsten filament-T1, welding arc -T3
c
Sun-T3, tungsten filament -T2, welding arc - T1
d
Sun-T3, tungsten filament-T1, welding arc -T2

detailed solution

Correct option is D

According to Wein's displacement law λT=constant.Also T3>T2>T1 .

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