Question: Q. 4. Show, by giving a simple example, how EM waves carry energy and momentum.
U] [Delhi Comptt. I, II, III 2014]
Solution:
Ans. Consider a plane perpendicular to the direction of propagation of the wave. An electric charge, on the plane, will be set in motion by the electric and magnetic fields of EM wave, incident on this plane. This illustrates that EM waves carry energy and momentum.
[CBSE Marking Scheme 2014]
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