**Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies102.5 MHz (typical frequency for FM radio broadcasting)**

**Answer:**

Energy of a photon can be calculated using the following equation,

E=hν

Where,

E - Energy of the photon (electron volt (eV))

h - Planck’s Constant (6.63*10^-34 Joule-second (J-s))

ν - Frequency of the electromagnetic wave (Hz)

You need to convert Planck’s constant from J-s to e-v. (Since energy can be measured in eV, 1eV = 1.6*10^-19 J)

hence planck’s constant value in ev is

h - 4.136*10^15 eV/Hz

Now,

E = 4.136*10^15 * 102.5*10^6 = 4.2394*10^23 eV