5 prisms of refractive indices n1,n2,n3,n4,n5 are arranged alternatively.light enters and leaves at same grazing angle.What is the value of n1^2 + n3^2 + n5^2
a)1 + n2^2 + n4^2
b)2 + n2^2 + n4^2
c) n2^2 + n4^2
d)none of these
5 prisms of refractive indices n1,n2,n3,n4,n5 are arranged alternatively.light enters and leaves at same grazing angle.What is the value of n1^2 + n3^2 + n5^2
a)1 + n2^2 + n4^2
b)2 + n2^2 + n4^2
c) n2^2 + n4^2
d)none of these
Sathya , 14 Years ago
Grade 10
