Q. A thin soap film (n = 1.33) has a uniform thickness. When white light strikes the film at normal incidence, blue light (b = 440 nm) is constructively reflected. At what angle of incidence will green light (g = 560 nm) be most strongly reflected? Assume the film has the minimum thickness that can produce these reflections.
Q. In a system with two moving objects, when a collision occurs between the objects:
a. the total kinetic energy is always concerved
b. the total momentum is always conserved
c. the total kinetic energy and total momentum are always conserved
d. neither the kinetic energy nor the momentum is conserved