Wein's constant is $2892 \times {10^{ - 6}}$$MKS$ unit and the value of ${\lambda _m}$ from moon is $14.46$ microns. What is the surface temperature of moon ...... $K$
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(d) ${\lambda _m}T = 2892 \times {10^{ - 6}} \Rightarrow T = \frac{{2892 \times {{10}^{ - 6}}}}{{14.46 \times {{10}^{ - 6}}}} = 200\;K$
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