The refractions through the prisms are as shown. Pick out the correct statement from the following. Path of the light ray in
1
a is correct if n1 > n2 and n2 > n3
2
b is correct if n1 = n2 and n2 > n3
3
c is correct if n2 < n1 and n2 > n3
4
d is correct if n1 > n2 and n2 < n3