The angle of incidence
A. must equal the angle of refraction.
B. is always less than the angle of refraction.
C. is always greater than the angle of refraction.
D. may be greater than, less than, or equal to the angle of refraction.
Answer:D
The angle of incidence
A. must equal the angle of refraction. B. is always less than the angle of refraction. C. is always greater than the angle of refraction. D. may be greater than, less than, or equal to the angle of refraction.