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A proton, a deuteron and an alpha partic...

A proton, a deuteron and an `alpha` particle having same momentum enter a uniform magnetic field at right angles to the field. Then the ratio of their angular momenta during their motion in the magnetic field is

A

`2:2:1`

B

`2:1:3`

C

`4:1:2`

D

`4:2:1`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • An electron and a proton enter a magnetic field at right angles to the field with the same kinetic energy

    A
    the electron trajectory will be less curved than the proton trajectory
    B
    the proton trajectory will be less curved than the electron trajectory
    C
    both trajectories will be equally curved
    D
    both particles move in straight lines

  • In a uniform magnetic field, the field lines are :

    A
    curved
    B
    parallel and equidistant straight lines
    C
    parallel, but non-equispaced straight lines
    D
    nothing can be said.
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