Question

In Rutherford experiment, for head-on collision of $\alpha$-particles with a gold nucleus, the impact parameter is

• A. of the order of $10^{−10}$ m
• B. zero
• C. of the order of $10^{−6}$ m
• D. of the order of $10^{−14}$ m

Answer 1

Answer: (B)

For head on collision the impact parameter is zero as it retraces the path.