When uranium 92U235 decays, it emits a ray. If the emitted ray has a wavelength of 1.30 x 10-11 m, determine the energy (in MeV) of the ray

Answer 1

ε=hc/λ=
=6.63•10^-34•3•10^8/1.3•10^-11=
=1.53•10^-14 J =1.53•10^-14/1.6•10^-19=
=95625 eV=0.095625 MeV

Answer 2

When uranium 92U235 decays, it emits a ray. If the emitted ray has a wavelength of 1.16 × 10-11 m, determine the energy (in MeV) of the ray.