The refractive index of a material is 1 5 Calcu... - WAEC Physics 2013 Question
The refractive index of a material is 1.5. Calculate the critical angle at the glass-air interface
A
19o
B
21o
C
39o
D
42o
correct option: d
SinC = (\frac{1}{n} = \frac{1}{1.5} = 0.6667)
C = sin-10.6667
= 42o
Please share this, thanks:
#WAEC #WAEC
Add your answer
No responses