Imagine That in a Davisson-Germer-Type Experiment We Shine a Beam $50^{\circ}$

Short Answer

Imagine that in a Davisson-Germer-type experiment we shine a beam of electrons on a nickel crystal perpendicular to the crystal face and find that we get enhanced scattering at an angle of $50^{\circ}$ . If we double the electrons' kinetic energy,
-(c) (A) 1 (B) $2^{1 / 2}$ , or (C) 2