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.
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.
- [JEE MAIN 2020]
- A
$\frac{1}{\sqrt{2}}(\hat{ i }+\hat{j})$
- B
$\frac{1}{\sqrt{5}}(\hat{ i }+2 \hat{ j })$
- C
$\frac{1}{\sqrt{5}}(2 \hat{ i }+\hat{ j })$
- D
$\frac{1}{\sqrt{2}}(\hat{j}+\hat{k})$
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- [JEE MAIN 2022]
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- [NEET 2017]