CUET Preparation Today
| The sun delivers $10^3 W/m^2$ of electromagnetic flux to the earth's surface. |
| the radiation force on a roof of dimensions 8m x 20m, will be: |
$3.33 \times 10^{–5}N$ $5.33 \times 10^{–4}N$ $7.33 \times 10^{–3}N$ None of these |
| $5.33 \times 10^{–4}N$ |
| $ F = PA = \frac{I}{c} A = \frac{10^3\times 160}{3\times 10^8} = 5.33\times 10^{-4}N$ |
