The energy of a photon is equal to the kinetic energy of a proton

PHYSICS · Single correct · A Level · Physics · Particles and radiation · Particles and radiation

Problem

The energy of a photon is equal to the kinetic energy of a proton. Let this energy be

E

. Let

\lambda_1

be the de Broglie wavelength of the proton and

\lambda_2

be the wavelength of the photon. The ratio

\dfrac{\lambda_1}{\lambda_2}

is proportional to (1)

E^0

(2)

E^{1/2}

(3)

E^{-1}

(4)

E^{-2}