Question

If the impact parameter is very small, then the scattering angle is around

• A. Zero
• B. ${90}^0$
• C. ${180}^0$
• D. ${360}^0$

Answer 1

The correct option is C ${180}^0$

$\begin{array}{c}\text{Given- The impact parameter is very small.}\\ \\ \Rightarrow \text{The the particle remains undisturbed during}\\ \text{its motion by the influence of the nucleus.}\\ \text{Hence, the particle passes undeflected.}\\ \Rightarrow \text{Scattering angle}={180}^{\circ }\\ \text{Hence, option (C) is correct.}\end{array}$