Question

Q18. EM waves are produced by
*
(a) an accelerated charged particle
(b) a charged particle moving with
constant speed
O (c) particle at rest
(d) both (b) and (c)​

Answer 1

Answer :-

An accelerated charge is the source of electromagnetic waves (EMWs).

When the charge is in a circular motion, the direction of its velocity continuously changes and thus it is in accelerated motion and produces EMWs.

A charge falling in an electric field is accelerated by the electric force and thus produces EMWs.

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Answer 2

an accelerated charged particle