The solar energy coming to the earth by radiation is 1,340 W/m² when the temperature of the Sun is 5800 K.If the temperature of the Sun decreased by 10.0%,then what would be the amount of solar radiation coming to the earth?

Question

Quizplus · Accepted Answer

The intensity of solar radiation is proportional to the fourth power of the Sun's temperature. If the temperature of the Sun decreased by 10.0%, then the intensity of solar radiation would decrease by (1 - 0.1)^4 = 0.64. Therefore, the amount of solar radiation coming to the earth would be 1,340 W/m^2 * 0.64 = 857.6 W/m^2.

The Solar Energy Coming to the Earth by Radiation Is