Question

A proton has kinetic energy E = 100 keV which is equal to
that of a photon. The wavelength of photon is ????₂ and that of
proton is ????₁. The ratio of ????₂/????₁ is proportional to
(a) E² (b) E½
(c) E⁻¹ (d) E-½

Answer 1

your answer is d

hope this would help you!!

Answer 2

Answer:

(b)

Explanation:

lamda1/lamda2 = √E/(2mc^2)

i.e; lamda1/lamda2 proportional to E