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Question: Answered & Verified by Expert
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 :
PhysicsAtomic PhysicsNEETNEET 2009 (Mains)
Options:
  • A Directly proportional to mass $M_1$
  • B Directly proportional to $\mathrm{M}_1 \times \mathrm{M}_2$
  • C Directly proportional to $Z_1 Z_2$
  • D Inversely proportional to $Z_1$
Solution:
2066 Upvotes Verified Answer
The correct answer is: Directly proportional to $Z_1 Z_2$
$$
\text { } \text { Energy }=\frac{1}{4 \pi \in_0} \frac{Z_1 Z_2}{\mathrm{r}_0}
$$

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