Mumbai university > FE > SEM 2 > Applied Physics II

Marks: 8M

Year: Dec 2014

Consider a planoconvex lens of radius ‘R’ as shown.

As radius is comparatively large, the space between lens and base can be considered as wedge shaped.

Thus path difference is given by

$Δ = 2μt cos (r_e + α) ± \frac{λ}{2}.....(r_e = angle \ \ of \ \ refraction)$

For …