Wein's constant is 2892 × 10-6 m K and the value of λm for the moon is 14.46 micron . The surface temperature of the moon is

Question

Wein's constant is 2892 × 10-6 m K and the value of λm for the moon is 14.46 micron . The surface temperature of the moon is (A) 100 K (B) 300 K (C) 400 K (D) 200 K

Tardigrade Admin · Accepted Answer

According to Wein's displacement law λm T=b T=(b/λm)=(2892 × 10-6/14.46 × 10-6) T=200 mathrm~K

Q. Wein's constant is $2892 \times 1 0^{- 6} m K$ and the value of $λ_{m}$ for the moon is $14.46$ micron . The surface temperature of the moon is

100 K

300 K

400 K

200 K

According to Wein's displacement law
$λ_{m} T = b$
$T = \frac{b}{λ _{m}} = \frac{2892 \times 1 0 ^{- 6}}{14.46 \times 1 0 ^{- 6}}$
$T = 200 K$

Q. Wein's constant is 2892×10−6mK and the value of λm​ for the moon is 14.46 micron . The surface temperature of the moon is