Young's double-slit experiment, evolution of the phase

In Young's double slit experiment

In Young's double slit experiment:

In young' double slit experiment

Youngs Double Slit Experiment

In a Young's double slit experiment, the separation of the two slits is doubled. To keep the samme spacing of fringes, the distance D of the screen from the slits should be made

In Young's double slit experiment, if one of the slit is closed fully, then in the interference pattern

In a Young’s double slit experiment, the separation of the two slits is doubled. To keep the same spacing of fringes, the distance D of the screen from the slits should be made

In the Young's double slit experiment, if the phase difference between the two waves interfering at a point is phi , the intensity at that point can be expressed by the expression

In Young's double slit experiment, if the widths of the slits are in the ratio 4:9, the ratio of the intensity at maxima to the intensity at minima will be

If white light is used in a Young's double-slit experiment, the