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Assume that an electron and a position p...

Assume that an electron and a position pair is formed from a gamma ray photon having energy 3.0 MeV. Find the total kinetic energy of the positron and the electron that is formed.

Text Solution

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The correct Answer is:
1.98MeV.
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Knowledge Check

  • To produce an electron-position pair, the minimum energy of gamma -ray photon must be

    A
    `1.02keV`
    B
    `1.02MeV`
    C
    `1.02BeV`
    D
    `1.02eV`

  • The momentum of a photon having energy equal to the rest energy of an electron is

    A
    zero
    B
    `2.73 xx 10^(-22)kg ms^(-1)`
    C
    `1.99 xx 10^(-24)kg ms^(-1)`
    D
    infinite

  • The ratio of the kinetic energy to the total energy of an electron in a Bohr orbit is

    A
    `-1`
    B
    `2`
    C
    `1:1`
    D
    None of these

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