NEET UG PHYSICS MCQ: ELECTROMAGNETIC WAVES

1 Easy

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Application +4 | -1

In an electromagnetic wave the amplitude of magnetic field is

3 \times 10^{-8} \mathrm{~T}

. If the frequency of wave is

10^{12} \mathrm{~Hz}

, then find the amplitude of associated electric field in S.I. unit.

View answer and explanation

Correct option: A

Option A (9) is correct because the amplitude of the electric field is calculated using the relation

E_0 = cB_0

, where c is the speed of light.

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