Question

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

• A. 100 K
• B. 300 K
• C. 400 K
• D. 200 K

Answer 1

The correct option is D 200 K

${\lambda }_{m}T=2892\times {10}^{-6}\Rightarrow T=\frac{2892\times {10}^{-6}}{14.46\times {10}^{-6}}=200K$