A) \[\sin \theta >\frac{8}{9}\]
B) \[\sin \theta <\frac{8}{9}\]
C) \[\sin \theta =\frac{1}{\sqrt{2}}\]
D) None of these
Correct Answer: A
Solution :
Angle of incidence at face \[AC\] is\[\theta \]. Since the ray suffers total internal reflection, \[\theta \] must be greater than critical.You need to login to perform this action.
You will be redirected in
3 sec