In a plane...... | Electromagnetic Waves

JEE MAIN 2020

02-09-2020 S2

Question

In a plane electromagnetic wave, the directions of electric field and magnetic field are represented by $\hat{\mathrm{k}}$ and $2 \hat{\mathrm{i}}-2 \hat{\mathrm{j}}$ respectively. What is the unit vector along direction of propagation of the wave?

Select the correct option:

$\frac{1}{\sqrt{5}}(\hat{i}+2 \hat{j})$

$\frac{1}{\sqrt{2}}(\hat{\mathrm{j}}+\hat{\mathrm{k}})$

$\frac{1}{\sqrt{2}}(\hat{i}+\hat{j})$

$\frac{1}{\sqrt{5}}(2 \hat{i}+\hat{j})$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Physics

Easy

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