A plane electromagnetic wave of frequency 100 MHz... | EM Waves | JEE Main

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JEE MAIN 2021

18-03-21 S1

Question

A plane electromagnetic wave of frequency 100 MHz is travelling in vacuum along the $x$-direction. At a particular point in space and time, $\overline{\mathrm{B}}-2.0 \times 10^{-18} \hat{\mathrm{kT}}$. (where, $\hat{k}$ is unit vector along z -direction) What is $\overline{\mathrm{E}}$ at this point?

Select the correct option:

A

$0.6 \hat{\mathrm{j}} \mathrm{V} / \mathrm{m}$

B

$0.6 \hat{\mathrm{k}} \mathrm{V} / \mathrm{m}$

C

$6.0 \hat{\mathrm{j}} \mathrm{V} / \mathrm{m}$

D

$0.6 \hat{\mathrm{k}} \mathrm{V} / \mathrm{m}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

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