JAMB - Physics (1995 - No. 26)
What is the approximate critical angle for total internal reflection for diamond if the refractive index of diamond is 2.42?
21o
22o
23o
24o
Explanation
SinC = \(\frac{1}{n}\)V2
SinC = \(\frac{1}{2.42}\)
SinC =24o
SinC = \(\frac{1}{2.42}\)
SinC =24o