In Young's double-slit experiment , d is separation between the slits. Separation between plane of the slits and screen is D. Wavelength of light used is `lambda`. Number of fringes per unit distance on the screen is

In Young's double-slit experiment, the separation between the slits is halved and the distance between the slits and the screen in doubled. The fringe width is

In Young's double slit experiment, the sepcaration between the slits is halved and the distance between the slits and the screen is doubled. The fringe width is

In Young's double slit experiment, slit separation is 0.6 mm and the separation between slit and screen is 1.2m . The angular width is (the wavelength of light used is 4800Å )

In a double slit experiment, the separation between the slits is d and distance of the screen from slits is D. If the wavelength of light used is lambda and I is theintensity of central bright fringe, then intensity at distance from central maximum is

How does the fringe width, in Young's double-slit experiment, change when the distance of separation between the slits and screen is doubled ?