Question text
23 A ray of light travels from X to Y along an optical fibre. The angle of incidence at Y is greater than the critical angle. In which direction does the ray of light travel after reaching point Y? A B optical fibre Y C D X
23 A ray of light travels from X to Y along an optical fibre. The angle of incidence at Y is greater than
the critical angle.
In which direction does the ray of light travel after reaching point Y?
A
B
optical fibre
Y
C
D
X
Select your answer: