The Sun approximates a blackbody at $5800$ KK$.$

Part A

Find the wavelength of peak radiance on the per$-$unit$-$wavelength basis implicit in the equation peakT$=2\mathrm{.}898$mm$$KpeakT$=2\mathrm{.}898$mm$$K $($Wien$\text{'}$s law$).$

Express your answer in nanometers.

Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

peakpeak $=$

nothing

nmnm

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Part B

Identify the spectral region of peakpeak$.$

ultraviolet regionvisible spectrum $($green$)$visible spectrum $($red$)$infrared regionradio waves

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Part C

Find the median wavelength, medianmedian$,$below which half the radiation is emitted $($the equation medianT$=4\mathrm{.}11$mm$$KmedianT$=4\mathrm{.}11$mm$$K$).$

Express your answer in nanometers.

Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

medianmedian $=$

nothing

nmnm

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Part D

Identify the spectral region of medianmedian$.$

far ultraviolet region.near ultraviolet regionvisible spectrumnear infrared region.far infrared regionradio waves