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

1. A The wavelength is 5.4 m
2. B The frequency of electromagnetic wave is 54 $\times$ 10⁴ Hz.
3. C The transmitted wave will be $3.1\cos \left[ {(1.8)z - (5.4 \times {{10}^6})t} \right]\widehat iN/C$
4. D The reflected wave will be $3.1\cos \left[ {(1.8)z + (5.4 \times {{10}^6})t} \right]\widehat iN/C$ Correct answer

Solution

Reflected wave will have direction opposite to incident wave.

About this question

Subject: Physics · Chapter: Electromagnetic Waves · Topic: Properties of EM Waves

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