JEE MAIN - Physics (2021 - 18th March Evening Shift - No. 1)

A plane electromagnetic wave propagating along y-direction can have the following pair of electric field $$\left( {\overrightarrow E } \right)$$ and magnetic field $$\left( {\overrightarrow B } \right)$$ components.

E_x, B_z or E_z, B_x

E_x, B_y or E_y, B_x

E_y, B_y or E_z, B_z

E_y, B_x or E_x, B_y

Explanation

$$ \because $$ $$\widehat E \times \widehat B = \widehat C$$

$$ \therefore $$ $$\widehat E \times \widehat B$$ should point in the direction of propagation of wave (y-direction here)

$$ \therefore $$ possible combinations are (E_x, B_z) or (E_z, B_x)

JEE MAIN - Physics (2021 - 18th March Evening Shift - No. 1)

Explanation

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