A beam of fast moving alpha particles were directed towards a thin film of gold.
Channel: Doubtnut
Date: 2020-01-19

A beam of fast moving alpha particles were directed towards a thin film of gold. The parts `A\', B\'` and `C\'` of the transmitted and refected beams correcponding ro the incident parts `A, B` and `C` of the beam, are shown in the adjoining diagram. The number of alpha particles in