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In pair annihilation an electron and a p...

In pair annihilation an electron and a position destroy each other to produce gamma radiations . How is the momentum conserved ?

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When an electron annhilates a position, two `gamma`-rays photon are produced, which move in opposite directions. This leads to conservation of linear momentum. `._(0)e^(-1)+._(0)e^(1) to 2gamma` ray photons
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Knowledge Check

  • In pair annihiliation two gamma -ray photons are produced it is due to

    A
    Law of conservation of energy
    B
    Law of conservation of mass
    C
    Law of conservation of momentum
    D
    Law of conservation of angular momentum

  • In pair annihiliation the least number of gamma -ray photons produced is

    A
    `2`
    B
    `3`
    C
    `4`
    D
    `1`

  • Statement-1 : Conservation of a gamma photon into an electron and a positron is an example of pair production. Statement-2: Pair production refers to the creation of an elementary particle and its antiparticle , usually when a photon interacts with a nucleus.

    A
    Statement-1 is True, statement-2 is True, Statement-2 is a correct explantion for Statement-1.
    B
    Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1
    C
    Statement-1 is True, Statement-2 is False.
    D
    Statement-1 is False, Statement-2 is True.

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