Physics · 2020
JEE Main · 2 September 2020, Shift 2 · Q15
In a plane electromagnetic wave, the directions of electric field and magnetic field are represented by k and 2 i -2 j, respectively. What is the…
In a plane electromagnetic wave, the directions of electric field and magnetic
field are represented by $\displaystyle \hat{k}$ and $\displaystyle 2 \hat{i}-2 \hat{j}$, respectively. What is the unit vector along direction of propagation of the wave.
Official answer
(2)
$\displaystyle \frac{1}{\sqrt{2}}(\hat{i}+\hat{j})$
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JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.