Calculate the energy of a photon (in J) with a frequency of 2.00e+16 Hz?

An electron of mass 9.11 × 10−31 kg and a bowling ball of mass 6.00 kg each have 4.50 eV of kinetic energy.  Calculate the de Broglie wavelength of the electron: Calculate the wavelength of a 4.50 eV photon:

In what part of the EM spectrum would a photon of energy 2.1 ✕ 10−11 J be found?   What is its energy in electronvolts?

. Find the momentum of a photon in eV/c and in kg·m/s if the wavelength is (a) 400 nm, (b) 1 Å = 0.1 nm, (c) 3 cm, and (d) 2 nm.

Calculate the momentum in N·s of a photon with a wavelength 638 nm.

Calculate the energy of a photon of wavelength 600 nm (or 600 x 10-9 m).