What is the nature of energy transfer in Compton scatter?

• A. Total transfer of energy
• B. No transfer of energy
• C. Partial transfer of energy
• D. Variable transfer of energy

Answer: (C)

In Compton scatter, the phenomenon involves the interaction between an incoming photon and a loosely bound outer electron of an atom. During this interaction, a fraction of the photon's energy is transferred to the electron, allowing the electron to be ejected from its shell while the photon itself loses some energy and changes direction.

This process results in a partial transfer of energy from the photon to the electron, rather than a total transfer where all energy would be converted, as would happen in complete absorption. The nature of this interaction is also dependent on the energy of the incoming photon and the angle at which it scatters. Thus, the correct understanding of Compton scattering emphasizes that only a portion of the energy is transferred to the electron, hence the choice of partial transfer of energy accurately reflects the mechanics of this scattering event.