Question text
20 Which statement is correct? A Total internal reflection only occurs when light travels from air into glass. B The larger the refractive index of glass, the larger is the critical angle. C When total internal reflection occurs, the angle of incidence is equal to the angle of reflection. D When total internal reflection occurs, the angle of incidence is less than the critical angle.
20 Which statement is correct?
A Total internal reflection only occurs when light travels from air into glass.
B The larger the refractive index of glass, the larger is the critical angle.
C When total internal reflection occurs, the angle of incidence is equal to the angle of reflection.
D When total internal reflection occurs, the angle of incidence is less than the critical angle.
Select your answer: