Given below are two statements:Statement I: E | vedclass

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(B) Statement $I$ is correct: Electromagnetic waves transport energy through space. The energy density associated with the electric field is $u_E = \f

Vedclass · Accepted Answer

Both Statement $I$ and Statement $II$ are correct.

Vedclass · Answer

(B) Statement $I$ is correct: Electromagnetic waves transport energy through space. The energy density associated with the electric field is $u_E = \frac{1}{2} \varepsilon_0 E^2$ and the energy density associated with the magnetic field is $u_B = \frac{B^2}{2 \mu_0}$. Since $E = cB$ and $c = \frac{1}{\sqrt{\mu_0 \varepsilon_0}}$,it follows that $u_E = u_B$. Thus,the energy is equally shared.Statement $II$ is correct: Electromagnetic waves carry momentum $p = \frac{U}{c}$. When they strike a surface,they transfer this momentum,thereby exerting radiation pressure on the surface.Therefore,both statements are correct.

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