JEE Main · Electromagnetic Waves · Quiz
5 real JEE Main questions on Electromagnetic Waves. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 5
HARDAn electromagnetic wave traveling in vacuum has an electric field amplitude of 60 V/m. If the speed of light is 3 × 10^8 m/s and the permittivity of free space ε₀ = 8.85 × 10^-12 C²/Nm², what is the average intensity of the wave? (Use I = (1/2)ε₀cE₀²)