Question

When a medium of µ ≠ 1 is introduced in the Newton’s ring set up, what
happens to the diameter of interference pattern? Explain it with the help of
relevant equation.

Answer 1

Answer:

Since diameter of the ring is inversely proportional to the square root of refractive index of the medium between the planoconvex lens and plane glass plate, therefore as refractive index increases, diameter of the rings decrease, that is the rings contract.