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(B) According to Wien's Displacement Law,the wavelength corresponding to the maximum emission of radiation is inversely proportional to the absolute t

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Radiated energy would be predominantly in ultraviolet

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(B) According to Wien's Displacement Law,the wavelength corresponding to the maximum emission of radiation is inversely proportional to the absolute temperature: ${\lambda _{max}} \propto \frac{1}{T}$.Given that the current temperature of the sun is $T$,the wavelength of maximum emission is ${\lambda _{max}} \approx 4753 \mathring{A}$,which lies in the visible region (near violet).If the temperature becomes $T' = 2T$,the new wavelength of maximum emission will be ${\lambda '_{max}} = \frac{{\lambda _{max}}}{2} = \frac{4753 \mathring{A}}{2} \approx 2376.5 \mathring{A}$.Since this wavelength is shorter than the visible range,the radiated energy will be predominantly in the ultraviolet region.

If the temperature of the sun becomes twice its present temperature,then

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