Electromagnetic Waves — Prelims Questions

An electromagnetic wave has a peak electric field amplitude of $E_0 = 150,\text{V/m}$. What is the peak magnetic field amplitude ($B_0$) of this wave in vacuum?

Which of the following statements about electromagnetic waves is INCORRECT?

A plane electromagnetic wave is propagating in the positive x-direction. If the electric field oscillates in the y-direction, in which direction does the magnetic field oscillate?

Which of the following parts of the electromagnetic spectrum has the highest frequency?

The average energy density of an electromagnetic wave in vacuum is given by $langle u \rangle = \frac{1}{2}epsilon_0 E_0^2$. If the peak electric field amplitude is $E_0 = 300,\text{V/m}$, what is the average energy density? (Given $epsilon_0 = 8.85 \times 10^{-12},\text{F/m}$)

A radio station broadcasts at a frequency of $98.3,\text{MHz}$. What is the wavelength of these radio waves in air? (Assume speed of light in air is approximately $3 \times 10^8,\text{m/s}$)

Which of the following phenomena CANNOT be explained by the wave nature of electromagnetic radiation?