Under which condition will a light wave incident from air experience a 180° phase…
PHYSICS · Single correct · AP · Physics 2: Algebra-based · Waves Sound and Physical Optics · Waves Sound and Physical Optics
Problem
Under which condition will a light wave incident from air experience a 180° phase change upon reflection?
(a) 180∘ phase shift occurs whenever light reflects, regardless of the two media.
(b) When light reflects from a boundary where the second medium has a higher refractive index than the incident medium.
(c) When light reflects from a boundary where the second medium has a lower refractive index than the incident medium.
(d) Only if the angle of incidence exceeds the critical angle, i.e. during total internal reflection.