A linearly polarized electromagnetic wave in vacuum is E = 3.1 cos [ (1.8)z - (5.4 × 10⁶)t ] iN/C is incident normally on a perfectly reflecting wall at z = a. Choose the correct option

(D) The reflected wave will be 3.1 cos [ (1.8)z + (5.4 × 10⁶)t ] iN/C

(B) The frequency of electromagnetic wave is 54 × 10⁴ Hz.

(C) The transmitted wave will be 3.1 cos [ (1.8)z - (5.4 × 10⁶)t ] iN/C

Electromagnetic Waves: JEE Main 2021 Physics question

JEE Main 2021 · 25 Jul, Morning shift · Q6778

JEE Main 202125 Jul, Morning shiftPhysicsEasyElectromagnetic Waves120× since 2002

A linearly polarized electromagnetic wave in vacuum is

E = 3.1\cos \left[ {(1.8)z - (5.4 \times {{10}^6})t} \right]\widehat iN/C

is incident normally on a perfectly reflecting wall at z = a. Choose the correct option

JEE Main 2021 · 25 Jul, Morning shift · Q6778

JEE Main 202125 Jul, Morning shiftPhysicsEasyElectromagnetic Waves120× since 2002

A linearly polarized electromagnetic wave in vacuum is

E = 3.1\cos \left[ {(1.8)z - (5.4 \times {{10}^6})t} \right]\widehat iN/C

is incident normally on a perfectly reflecting wall at z = a. Choose the correct option