Q. In a Rutherford scattering experiment when a projectile of charge $z_{1}$ and mass $M_{1}$ approaches a target nucleus of charge $z_{2}$ and mass $M_{2},$ the distance of closest approach is $r_{0}.$ The energy of the projectile is
A) Directly proportional to $M_{1} \times M_{2}$
B) Directly proportional to $z_{1}z_{2}$
C) Inversely proportional to $z_{1}$
D) Directly proportional to mass $M_{1}$
Explanation
The correct answer is Option B: Directly proportional to $z_{1}z_{2}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.