Given below are two statements: Statement I: Electromagnetic waves carry energy as they travel through space and this energy is equally shared by the electric and magnetic fields. Statement II: When e

Question

Given below are two statements:

Statement I: Electromagnetic waves carry energy as they travel through space and this energy is equally shared by the electric and magnetic fields.

Statement II: When electromagnetic waves strike a surface, a pressure is exerted on the surface.

In the light of the above statements, choose the most appropriate answer from the options given below:

TestHub · Accepted Answer

Electromagnetic wave carries energy shared equally in magnetic and electric field which is given by, $= \frac{1}{2} ε_{0} E^{2} = \frac{B^{2}}{2 μ_{0}}$ , as $E = c B$ and $c^{2} = \frac{1}{μ_{0} ε_{0}}$ .

Also, Electromagnetic wave carries momentum and therefore exerts force when it strikes a surface.

Physics - EM Waves Question with Solution | TestHub

Options:

Doubts & Discussion