Question

The energy of a photon of electromagnetic radiation with wavelength of 800nm is 2.5 x 10-19) True False

Answer 1

E = h ν = h c / λ energy of photon

E = 6.62E-34 * 3.00E8 / 8.00E-7

E = 6.62 * 3.00 / 8.00 * e^-19 J

=2.5E-19 J

True