When a beam of light, which is traveling in air, is reflected by a glass surface, there is
A. a 90e phase change in the reflected beam.
B. no phase change in the reflected beam.
C. a 180e phase change in the reflected beam.
D. a 45e phase change in the reflected beam.
Answer:C
When a beam of light, which is traveling in air, is reflected by a glass surface, there is
A. a 90e phase change in the reflected beam. B. no phase change in the reflected beam. C. a 180e phase change in the reflected beam. D. a 45e phase change in the reflected beam.