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A beam of fast moving alpha particles we...

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

A

B' will be minimum and in C' maximum

B

A' will be maximum and in B' minimum

C

A' will be minimum and in B' maximum

D

C' will be minimum and in B' maximum

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A beam of mixture of alpha particle and protons are accelerted through same potential difference before entering into the magnetic field of strength B. if r_1=5 cm then r_2 is

    A
    `5 cm`
    B
    `5sqrt2cm`
    C
    `10sqrt2cm`
    D
    `20 cm`

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