Question

Solar energy strikes earth’s atmosphere at 343 W m-2 . About 30% is reflected and the rest is absorbed

Answer 1

The black body temperature of Earth T_e= 180.4 K

Step-by-step explanation:

Assuming we have to find Black body temperature of the earth.

`T_e =((s_o(1-\alpha))/(4\sigma))^(0.25)`

S0= solar energy striking the earth= 343 Wm^{-2}

\alpaha = 30% = 0.3

\sigma = stephan boltsman constant.= 5.67×10^{-8} Wm^{-2}K^4

`T_e =((343(1-0.3))/(4*5.67×10^(-8)))^(0.25)`

T_e= 180.4 K