Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Waves

Question:

An EM wave travelling in vacuum is described by $\vec{E}=\vec{E}_0 \sin (k x-\omega t) \hat{j}$ and $\vec{B}=\vec{B}_0 \sin (k x-\omega t) \hat{k}$

Which of the following relation is true?

Options:

$E_0 k=B_0 \omega$

$E_0 \omega=B o K$

$E_0 B_0=k \omega$

$\frac{B_o}{E_o}=\sqrt{\omega / k}$

Correct Answer:

$E_0 k=B_0 \omega$

Explanation:

The correct answer is Option (1) → $E_0 k=B_0 \omega$