CUET Preparation Today
If the total energy is transferred by the electromagnetic waves on a surface be U in time t, then the total momentum delivered to the surface is |
Uc $\frac{c}{U}$ $\frac{U}{c}$ $\frac{U^2}{c}$ |
$\frac{U}{c}$ |
The correct answer is Option (3) → $\frac{U}{c}$ For electromagnetic waves, the energy U and momentum (P) are related - $U=cP$ $⇒P=\frac{U}{c}$ [c → speed of light] |
