Question

Electromagnetic flux of 1380 watt/$m^2$ is obtained on earth from the sun. The total power incident on 25 m x 50 m surface will be

• A. $1.725\times {10}^{6}watt$
• B. $3.45\times {10}^{6}watt$
• C. $6.9\times {10}^{6}watt$
• D. $1.38\times {10}^{7}watt$

Answer 1

The correct option is A $1.725\times {10}^{6}watt$

$Power=\left(Electromagneticflux\right)\ast area$
power=1380 *50*20=1.725\times 10^{6}
option $A$ is correct