Electromagnetic Waves Mock Tests

In an electromagnetic wave, the average energy density stored in the electric field is:

The ratio of the speed of electromagnetic waves in vacuum to the speed in a medium of relative permittivity ε_r = 2.25 and relative permeability μ_r = 1 is:

An EM wave in vacuum has electric field E = E_0*cos(kz - omega t)*(i + j)/sqrt(2). The time-averaged Poynting vector is:

A plane electromagnetic wave has electric field amplitude E₀ = 0.03 V/m in vacuum. The average energy density associated with the magnetic field is (ε₀ = 8.85 × 10⁻¹² F/m):

A perfectly reflecting surface of area 0.01 m² is illuminated normally by a monochromatic light of intensity 100 W/m². The force exerted on the surface is closest to: (Take c = 3 × 10⁸ m/s)

Which type of electromagnetic wave has the shortest wavelength?

Which of the following electromagnetic waves has the shortest wavelength?

Which of the following electromagnetic waves has the longest wavelength?