﻿ An electron-positron pair is produced by the materialization of a gamma-ray photon of 2.26 MeV. How much kinetic energy is imparted to each of the charged particle? The rest mass of elector is  and the speed of light is . Take . : Kaysons Education

# An Electron-positron Pair Is Produced By The Materialization Of A Gamma-ray Photon Of 2.26 MeV. How Much Kinetic Energy Is Imparted To Each Of The Charged Particle? The Rest Mass Of Elector Is  and The Speed Of Light is . Take .

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## Question

### Solution

Correct option is

0.62 MeV

The equation representing pair-production is

(electron)         (positron)

The rest-mass of electron-positron pair is

= 1.02 MeV.

For electron-positron pair-production, the minimum energy of -photon should be 1.02 MeV. The energy in excess of this is imparted as kinetic energy to both these particles.

Here, the excess energy of the -photon is 2.26 MeV – 1.02 MeV. Thus, on the average, the kinetic energy imparted to each particle is 0.62 MeV. In fact, the positron gates slightly more than half.

Testing

#### SIMILAR QUESTIONS

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