What is the effect on interference pattern in Young's double slit experiment when screen is moved closer to the plane of slits?

What is the effect on interference pattern in Young's double slit experiment when separation between two slits is increased. Explain your answer in each case.

What is the effect on the interference pattern in Young's double slit experiment due to each of the following operations? The widths of the slits are increased equally.

What is the effect on the interference pattern in Young's double slit experiment due to each of the following operations? The shole apparatus is kept in a denser medium.

What is the effect on the interference fringes in a Young's double slit experiment due to each of the following oerations? The separtion betwen the two slits is decreased.

Give the shape of interference rings observed in a Young's double slit experiment.

What is the effect on the interference fringes in a Young's double slit experiment due to each of the following oerations? The monochromatic source is replaced by a source of white light.

What is the effect on the interference fringes in a Young's double slit experiment due to each of the following oerations? The source is replced by nother source of shorter wavelength.

How will the angular separation and visibility of fringes in Young's double slit experiment change when screen is moved away from the plane of the slits.