Question

When a photon collides with an electron and is deflected, the photon’s ____ decreases.

1. frequency
2. wavelength

Answer 1

1. Frequency

Step-by-step explanation:

When a photon collides with an electron, the effect of it is called Compton scattering, where the photons interact with the electron, losing momentum and therefore increase in wavelength and a decrease in frequency.

Answer 2

2. Wavelength

Step-by-step explanation:

When a photon collides with an electron and is deflected, the photon’s wavelength decreases.

When photon gained energy by the collision of the electron. Its energy and frequency will be increased and its wavelength will be decreased.