In YDSE, when separation between two slits is increased, fringe width

What is the effect on the interference fringes in a Young's double-slit experiment due to each of the following operations : the separation between the two slits is increased,

In a Young's double-slit experiment the fringe width is 0.2mm . If the wavelength of light used is increased by 10% and the separation between the slits if also increased by 10%, the fringe width will be

In a Young's double-slit experiment the fringe width is 0.2mm . If the wavelength of light used is increased by 10% and the separation between the slits if also increased by 10%, the fringe width will be

In Young's double slit experiment the separation between the slits is gradually decreased. The fringe width

In normal YDSE experiment, match the following two coloums. {:(,"Column I",,"Column II"),("A","In YDSE apparatus is immersed in a liquid",,"p. fringe width will increase"),("B","When wavelength of light used in increased",,"q. fringe width will decrease"),("C","When distance between slits and screen (D) is increased",,"r. fringe width will remain constant"),("D","When distance between two slits (d) is increased",,"s. fringe pattern will disappear"):}

In normal YDSE experiment, match the following two coloums. {:(,"Column I",,"Column II"),("A","In YDSE apparatus is immersed in a liquid",,"p. fringe width will increase"),("B","When wavelength of light used in increased",,"q. fringe width will decrease"),("C","When distance between slits and screen (D) is increased",,"r. fringe width will remain constant"),("D","When distance between two slits (d) is increased",,"s. fringe pattern will disappear"):}

In a Y.D.S.E, light of wavelength 500 nm is used. The separation between bright fringes is 7.5 mm., calculate the fringe width if light is replaced by another light of wavelength 650 nm and separation between the slits is increased to 1.5 times.