The graphs shown in the figure represent energy density Eλversus λ for three A sources sun, welding arc and tungsten filament. For λmax, correct combination will be :
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a
1-tungsten, 2-welding arc, 3-sun
b
1-sun, 2-tungsten, 3-welding arc
c
1-sun, 2-welding arc, 3-tungsten
d
1-welding arc, 2-sun, 3-tungsten
answer is A.
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Detailed Solution
As λ1>λ2>λ3 so T3>T2>T1 λT= CONSTANT acc to wein's displacement law.
The graphs shown in the figure represent energy density Eλversus λ for three A sources sun, welding arc and tungsten filament. For λmax, correct combination will be :