In physics, the mathematics would be underfoot, but quantization and other relationships studied more. Particles, C T remembered, made up so much of that junior- level physics course in high school. He remembered doing Einstein's famous experiment, the one Einstein never really did because he was too theoretical, concerning the photoelectric effect. An isolated Einstein could hardly have won that Nobel prize. The math wasn't too difficult.
Energy is proportional to frequency.
And then there was engineering. Engineering worked with the results of both where it was convenient. C T had looked at his handbook to see what courses an electrical engineer took in the junior and senior University years. In the group requirements were matrix methods, statistical thermodynamics, and photoelectronic devices. Here were drillings in three established technologies, where the needed understanding of the scientific and mathematical backgrounds related to their special coverage would be extensive, yet no room for theorizing would be present except for one minuscule freedom to think an infinitesimal beyond the job assigned.