in a two-slit interference pattern, the intensity at the peak of the central maximum is i_0.
(a) At a point in the pattern where the phase difference between the waves from the two slits is 62. What is the intensity? Give your answer as a fraction of i_0.
(b) What is the path difference for light with a wavelength of 473 nm from the two slits at a point where the phase angle is 62.0 degrees?
