Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Waves

Question:

The amplitude of the magnetic field of a harmonic electromagnetic wave in vacuum is B0 = 510nT. The amplitude of the electric field part of the wave is:

Options:

120 NC-1

134 NC-1

510 NC-1

153 NC-1

Correct Answer:

153 NC-1

Explanation:

Here, B0 = 510nT = 510 × 10-9 T

E0 = cB0 = 3 × 108 × 510 × 10-9 = 153 NC-1