Home
Class 12
PHYSICS
In an accelerator experiment on high-ene...

In an accelerator experiment on high-energy collisions of electrons with positrons, a certain event is interpreted as annihilation of an electron-positron pair of total energy 10.2 Bev into two `gamma-`rays of equal energy. What is the wavelength associated with each `gamma-`ray? `("1Bev = "10^(9) eV)`

Text Solution

Verified by Experts

Use `lambda=(hc//E)" with " E=5.1xx1.602xx10^(-10)J" to get "lambda=2.43xx10^(-16)m`.
Promotional Banner

Similar Questions

Explore conceptually related problems

A gamma ray photon creates an electron positron pair. If the rest mass energy of an electron is 0.5 MeV and the total kinetic energy of the electron positron pair is 0.78 MeV, then the energy of the gamma ray photon must be

The electron energy of hydrogen atom in the ground state works out to be - 2.18 xx 10^(-18) J per atom. Calculate what will happen to the position of the electron in this atom if an energy of 1.938 xx 10^(-18) J is supplied to the each hydrogen atom.

A moving electron has 4.55 xx 10^(-25) joules of kinetic energy. Calculate its wavelength (mass = 9.1 xx 10^(-31) kg and h = 6.626 xx 10^(-34) kg m^2 s^(-1) ).

A moving electron has 4.9 xx 10^(-25) joules of kinetic energy. Find out its de - Broglie wavelength (Given h = 6.626 xx 10^(-34) Js, m_e = 9.1 xx 10^(-31) kg).

In a chamber, a uniform magnetic field of 8.0 G is maintained. An electron with speed of 4.0 times 10^(6)ms^(-1) enters the chamber in a direction normal to the field. (a) Describe the path of the electron. (b) What is the frequency of revolution of the electron? (c) What happens to the path of electron if it progessively loses its energy due to collisions with the atoms or molecules of the environment?