Monochromatic light from a sodium lamp has a frequency of ν=5.09×1014Hz. Treating the radiation as an electromagnetic wave in free space, answer the following:
a. (i) Compute its time period T.
b. (ii) Determine the wavelength λ.
c. (iii) Evaluate the angular frequency ω and the wave number k. Verify that the product kω equals the speed of propagation.