Question

Calculate the energy, in joules, of a photon of green light having a wavelength of $562nm$?

Answer 1

$E=3.54\ast {10}^{-19}J$

$E=hf=\frac{hc}{\lambda }$

$E=\frac{6.626\ast {10}^{-34}\ast 3.00\ast {10}^8}{562\ast {10}^{-9}}J$

$E=3.537\ast {10}^{-19}J$