Question Detail

PHY 104 Photo Electric Emission Objective Question

Question

In the Compton Scattering formula Δλ = (h/mc)[1-cos(θ)], what does the term 'mc' represent in the denominator?
Options
A The momentum of the incident photon.
B The energy of the scattered photon.
C The rest mass energy of the electron.
D A combination of the electron's mass and the speed of light.
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

The formula Δλ = (h/mc)[1-cos(θ)] involves 'm' as the mass of the electron and 'c' as the speed of light. So, 'mc' is a product of these two fundamental constants relevant to the electron's properties in the interaction. Specifically, 'm' is the mass of the particle that the photon scatters from (an electron in this context, as mentioned on page 9: 'for scattering from an electron').

Hint

Consider the context of the formula and the mention of scattering from an electron on page 9.

Question Info