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In a plane electromagnetic wave, the directions of electric filed 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.

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152i^+j^

12j^+k^

12i^+j^

15i^+2j^

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detailed solution

Correct option is C

P^=E^×B^Where P^= Unit vector along propagation direction⇒P^=K^×2i^−2j^22⇒P^=12j^+i^

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In a plane electromagnetic wave, the directions of electric filed and magnetic field are represented by k^ and 2i^−2j^, respectively. What is the unit vector along direction of propagation of the wave.

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In a plane electromagnetic wave, the directions of electric filed 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.