Particles that do not interact via the strong force but do interact via the weak nuclear force (and presumably by the much weaker gravitation force) are called
A) mesons. B) nucleons. C) hadrons. D) baryons. E) leptons.
Question 2
A soap bubble, when illuminated with light of frequency 5.11 1014 Hz, appears to be especially reflective.
If it is surrounded by air and if its index of refraction is 1.35, what is the thinnest thickness the soap film can be? (c = 3.00 108 m/s)