JEE Main 2020 (2 Sep, Shift 2) Physics Q15: In a plane…

Question

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

Accepted Answer

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

Answer

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

Answer

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

Answer

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

Answer

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

JEE Main 2 September 2020, Shift 2, Physics Q15