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

Question

In Rutherford experiment, for head-on collision of a-particles with a gold nucleus, the impact parameter is, of the order of $ 10^{-10} \mathrm{~m} $, zero, of the order of $ 10^{-6} \mathrm{~m} $, of the order of $ 10^{-14} \mathrm{~m} $

MARKS App · Accepted Answer

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

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