Calculate the following: a. Frequency (in s-1) when the wavelength of an electromagnetic radiation is 632 nm [4.75 x 10 14 s-1] b. Wavelength (in m) when the frequency of an electromagnetic radiation is 835.6 MHz [3.59 x 10-1 m] c. Energy (in J) of a photon of a red light with wavelength 632 nm (used in question 1a) [3.14 x 10-19 J]