Physics chapter 18

In the process of pair production, which of the following occurs?

• A photon is converted into matter and antimatter.
• A photon is converted into two photons.
• Two protons are created.
• An electron is annihilated with a positron.

Pair production involves the creation of which of the following particle-antiparticle pairs?

• Electron and photon.
• Neutron and positron.
• Electron and positron.
• Photon and proton

After pair production, what happens to the electron and positron?

• They remain together as a stable pair.
• They annihilate each other.
• They move at the speed of light.
• They are absorbed by the nucleus.

When an electron and positron annihilate, they produce:

• Two photons.
• one photons.
• Two electron
• One electron

Compton's Effect demonstrates the particle nature of:

• Electron.
• photons
• proton
• neuron

The Compton effect involves the scattering of X-rays by:

• Electron.
• photons
• proton
• neutron

The Compton shift is maximum when the scattering angle is:

• 0°
• 90°
• 45°
• 180°

The Compton shift is zero when the scattering angle is:

• 0°
• 90°
• 45°
• 180°

Which of the following is the primary concept illustrated by Compton’s experiment?

• The wave nature of light.
• The particle nature of light.
• The diffraction of X-rays.
• The interference of photons.

The photoelectric effect refers to the emission of electrons from a metal surface when it is exposed to:

• Light or electromagnetic radiation.
• heat
• electrical charge
• Gravitational fields