Physics

Problem

The wavelength of a photon is

1.4 \text{ \AA}

. It collides with an electron. The energy of the scattered electron is

4.26 \times 10^{-16} \text{ J}

. Find the wavelength of photon after collision. Given

h = 6.63 \times 10^{-34} \text{ J}\cdot\text{s}