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CHM348Midterm1

Midterm 1

QuestionAnswer
What are the 3 process associated with light/matter interactions? Spontaneous emission, Absorption, Stimulated emission
Be able to identify the Einstein rate coefficients See flash card 4
Be able to identify all terms in Beer's law See flash card 5
Identify all terms in the expression for the absorption cross section. See flash card 1. See flash card 6
Why are "student-t" factors required in the evaluation of errors?
What is X squared?
Identify all terms in this equation see flash card 2.
A "1sigma" error limit corresponds to what % confidence limit?
Give an example of a source of systematic and random errors in any of the three experiments we performed.
Consider the model Y=ax+b. What are the two elements of the Jacobian matric at x=1.0?
Identify all terms in this eq. See flash card 3.
What is meant by "Quantum Confinement"?
Briefly describe the three models (particle in box, particle is sphere and "Brus's model") used to describe the electronic absorption spectrum of quantum dots.
What is an "excitron"
Is the onset of energy of the photon associates with the onset of absorption a QD higher or lower than the band gap of bulk material?
Created by: JadeTW