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A beam of fast moving alpha particles were directed towards a thin film of gold. The parts B A   , and C  of the transmitted and reflected beams corresponding to the incident parts A , B and C of the beam, are shown in the adjoining diagram. The number of alpha particles in

1. B  will be minimum and in C  maximum
2. A  will be maximum and in B  minimum
3. A  will be minimum and in B  maximum
4. C  will be minimum and in B  maximum

Correct answer: A  will be maximum and in B  minimum

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