Problem 3) Laser light [50 points]
A laser beam with wavelength $\lambda = 633$ nm is propagating through air in the $+z$-direction.
Its electric field is parallel to the $x$-axis and has amplitude (peak electric field) $E_p = 6.0 \frac{kV}{m}$.
a) Find the wave frequency $f$.
b) Find the amplitude $B_p$ of the magnetic field (numerical value in units of tesla, T).
c) Find the direction of the magnetic field.