Question:
Light, with a wavelength of 500 nm in air, strikes directly on a
double slit, spaced 440 micrometer apart. The resulting
interference pattern is observed on a screen that is 2.0 meters
away. Afterwards, the double slit apparatus is then submerged into
oil, which has an index of refraction of 1.58.  Assume
that the diffraction effects are negligible.
a)Calculate the distance between the first two
adjacent bright fringes on the screen, when set up in air.
b)Determine the frequency of...