Physics 30: Assignment 14 ASSIGNMENT 14 28 Marks Total Compton, de Broglie, and
ID: 2037945 • Letter: P
Question
Physics 30: Assignment 14 ASSIGNMENT 14 28 Marks Total Compton, de Broglie, and Wave-Particle Duality This assignment is worth 28 marks. The value of each question is noted in parentheses in the left margin. Note: The answer areas will expand to fit the length of your response. There are similarities and differences between the Photoelectric Effect and Compton Scattering. Complete each of the six partial statements below using the following guide; all you need to provide for an answer is PE, CS, BOTH, or NEITHER. 1. PE if the statement only applies to the Photoelectric Effect BOTH if the statement only applies to both the Photoelectric Effect and Compton .CS if the statement only applies to Compton Scattering Scattering NEITHER if the statement applies to Neither the Photoelectric Effect or Compton Scattering a. Energy is conserved in Answer b. Photons are observed before and after the interaction in Answer: c. Electrons are observed as the result of the experiment in Answer: d. Angles are measured in the experiment in Answer e. Photons with very low energies such as 5.0 to 10.0 eV is observed in_ Answer: f. lonization occurs inExplanation / Answer
a. BOTH, We use conservation of energy in both to get our desired results.
b. CS, there is no photon in PE as it gets absorbed.
c. PE, The elctron breaks free from the atom and gets emitted.
d. CS, Angles are measured to conserve momentum (momentum being a vectro has a direction)
e. PE, CS is associated with high energy photons corresponding to X-rays and higher whereas the photons mentioned here fall in the visible part of the spectrum and hence are involved in PE.
f. PE, the incident electron gives energy required for ionization i.e to let the electron escape the atom.