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NEET 2009
Exam
NEET
Year
2009
Subject
Physics
Chapter
Atomic Physics

NEET 2009 · Physics · Atomic Physics

In a Rutherford scattering experiment when a projectile of charge...

In a Rutherford scattering experiment when a projectile of charge Z1Z_1 and mass M1M_1 approaches a target nucleus of charge Z2Z_2 and mass M2M_2, the distance of closest approach is r0r_0. The energy of the projectile is :

Options

  1. ADirectly proportional to mass M1M_1
  2. BDirectly proportional to M1×M2\mathrm{M}_1 \times \mathrm{M}_2
  3. CDirectly proportional to Z1Z2Z_1 Z_2
  4. DInversely proportional to Z1Z_1

Correct answer

C. Directly proportional to Z1Z2Z_1 Z_2

Step-by-step solution

 Energy =14π∈0Z1Z2r0\text{ Energy }=\frac{1}{4 \pi \in_0} \frac{Z_1 Z_2}{\mathrm{r}_0}
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