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Find the e/m value of alpha-particle (He...

Find the e/m value of `alpha`-particle `(He^(+2))` w.r.t H-atom?

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`e//m` value of `He^(+2) = (2)/(4) = 0.5`
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Knowledge Check

  • The ratio of the e/m values of a proton and an alpha -particle is:

    A
    `2:1`
    B
    `1:1`
    C
    `1:2`
    D
    `1:4`

  • Ionized hydrogen atoms and alpha -particles with same momentants perpendicular to a constant magnetic field, B. The ratio of their radii of their paths r_(H) : r_(alpha) be :

    A
    `2 : 1`
    B
    `1 : 2`
    C
    `4 : 1`
    D
    `1 : 4`
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