Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Waves

Question:

A radiowave has a maximum magnetic field induction of 10−4 T on arrival at a receiving antenna. The maximum electric field intensity of such a wave is

Options:

Zero

3 × 104 Vm−1

5.8 × 10−4 T

3.0 × 10−5 T

Correct Answer:

3 × 104 Vm−1

Explanation:

$E_0 = cB_0 = 3 × 10^8 × 10^{-4} = 3 × 10^4 Vm^{-1}$