A ray undergoes a minimum deviation at 40o when it i...
A ray undergoes a minimum deviation at 40o when it is incident on equilateral triangular glass prism. Calculate the refractive index of the prism
1.48
1.50
1.53
1.67
Correct answer is C
n = sin12(dm+A)sin12A
= sin12(40+60)sin12×60
= 1.532