| A glass prism of refractive index 1.5 is immersed in water (refractive index \[\frac{4}{3}\]) as shown in figure. |
| A light beam incident normally on the face AB is totally reflected to reach the face BC, if [JEE ONLINE 19-05-2012] |
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A) \[\sin \theta >\frac{5}{9}\]
B) \[\sin \theta >\frac{2}{3}\]
C) \[\sin \theta >\frac{8}{9}\]
D) \[\sin \theta >\frac{1}{3}\]
Correct Answer: C
Solution :
[c] For total internal reflection on face AC  critical angle [c] and  |
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