When the temperature of a black body increases, it is observed that the wavelength corresponding to maximum energy changes from 0.26μm to 0.13μm Then ratio of the emissive power of the body at respective temperature is
A
16/1
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B
4/1
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C
1/4
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D
1/16
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Solution
The correct option is D1/16 According to Wein's displacement law (λm)1(λm)2=T2T1=0.260.13=2
From Stefan's law, ∴E1E2=(T1T2)4=(12)4=116