Question
A 1MeV positron collides headon with a 1MeV electron and they are annihilated, producing rays. Compute total energy of the resulting rays and their wavelength.Given : rest mass of electron or positron = 0.000549 u, .

None of these



medium
Solution
The annihilation equation is
(positron) (electron)
The total energy of the rays produced is equal to the sum of the restmass energies of the positron and the electron, plus their initial kinetic energies. Thus
.
The energy is shared by the two photon is
.
.
.
The wavelength of the photon is
.
SIMILAR QUESTIONS
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.
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