Physics

Problem

A proton has kinetic energy

E = 100

keV which is equal to that of a photon. The wavelength of photon is

\lambda_2

and that of proton is

\lambda_1

. The ration of

\lambda_2/\lambda_1

is proportional to a.

E^2

E^{1/2}

E^{-1}

E^{-1/2}