Two parallel rays are travelling in a medium of refractive index mu_1=4/3 One of the rays passes through a parallel glass slab of thickness t and refractive index mu_2=3/2. The path difference between the two rays due to the glass slab will be

Two parallel rays are travelling in a medium of refractive index mu_1=

1.	Two parallel rays are travelling in a medium of refractive index mu_1=4/3 One of the rays passes through a parallel glass slab of thickness t and refractive index mu_2=3/2. The path difference between the two rays due to the glass slab will be
Answer» SOLUTION :`DELTA X= (mu_2/mu_1-1)t=((3//2)/(4//3)-1)t=1/8`