Question
Note to moderator: Lorenz and Lorentz are different people.Answer the following about the Danish physicist Ludvig Lorenz. for 10 points each:
[10e] Lorenz developed a Lorentz-invariant gauge condition which fixes the sum of the partial derivatives of the electromagnetic four-potential to be this value. The electric potential infinitely far away is often defined to be this number for convenience.
ANSWER: zero [or 0]
[10h] The Lorentz-Lorenz equation relates the refractive index of a substance to this other property. The dielectric constant is expressed in terms of this property in the Clausius–Mossotti relation.
ANSWER: polarizability [or atomic polarizability; prompt on alpha; reject “polarity”]
[10m] The Lorenz-Mie solution to Maxwell’s equations describes a form of this phenomenon. Those solutions for this phenomenon are useful when the size of particles is comparable to the wavelength of the light.
ANSWER: Mie scattering [reject specific non-Mie forms of scattering, such as “Rayleigh scattering” or “Compton scattering”]
<BW, Physics>
Summary
| 2024 ARCADIA at UC Berkeley | 2024-12-06 | Y | 2 | 20.00 | 100% | 100% | 0% |
| 2024 ARCADIA at Waterloo | 2024-11-09 | Y | 1 | 20.00 | 100% | 100% | 0% |
| 2024 ARCADIA at Illinois | 2024-11-09 | Y | 1 | 20.00 | 100% | 100% | 0% |
Data
| Toronto A | Waterloo Basic | 10 | 0 | 10 | 20 |