Question

The energy of photon is 3 * 10-19 J atom),
then the wavelength (a) of the photon is
(Given, h (Planck's constant) = 6.63 x 10-34 J,
c (velocity of light) = 3.00 * 108 m s-1).​

Answer 1

Answer:

we know that E= h X frequency

therefore, E = h X c / wavelength

3 X 10^-19 = (6.63 X 10^-34) X (3 X 10^8) / wavelength

wavelength = 6.63 X 10^ -7

wavelength = 663nm