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  4. 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 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

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Q. 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 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 inPhysics Question Image

KCETKCET 2020Atoms

Solution:

$A'$ will be maximum and $B'$ will be minimum, because atom is hollow and whole mass of the atom is concentrated in a small centre called nucleus.