Figure shown a two slit arrangement with a source which emits unpolarised light. P is a polariser with axis whose direction is not given. If `I_0` is the intensity of the principal maxima when no polariser is present, calculte in the present case, the intensity of the principal maxima as well as the first minima.

Figure EP 10.19 shows a two slit arrangement with a source which emits unpolarised light. P is a polariser with axis whose direction is not given. If I_0 is the intenstiy of the principal maxima when no polariser is present, calculate in the present case, the intensity of the principal maxima as well as of the first minima.

When an unpolarised light intensity I_0 is incident on a polarising sheet ,the intensity of the light which does not get transmitted is

The ratio of the intensities between two coherent light sources used in Young's double slit experiment is n. Find the ratio of the intensities of principal maximum and minima of the band.