Question

Find the photon energy in ev for an electromagnetic wave of wavelength 1m

Answer 1

Photon Energies and the Electromagnetic Spectrum

Explain the relationship between the energy of a photon in joules or electron volts and its wavelength or frequency.

Calculate the number of photons per second emitted by a monochromatic source of specific wavelength and power.

Answer 2

Answer:

1. 243*10^-6 ev

Explanation:

E=hc/λ

E=6.63*10^-34 Js * 3*10^8 m/s / 1m

E=19.89*10^-26J

Photon energy in unit of eV,

E= (19.89*10^-26/1. 6*10^-19)eV

E=1.243*10^-6 eV