A glass with a refractive index of 1.5 is inserted into one arm of a Michelson interferometer that uses a 600-nm light source.This causes the fringe pattern to shift by 1000 fringes.How thick is the glass?

Question

Quizplus · Accepted Answer

The shift in fringes is given by the formula: shift = (2 * thickness * (n - 1)) / wavelength. Rearranging for thickness gives thickness = (shift * wavelength) / (2 * (n - 1)). Substituting the given values: thickness = (1000 * 600 nm) / (2 * (1.5 - 1)) = 0.6 mm.

A Glass with a Refractive Index of 1