In a biprism experiment, a source of light has a wavelength of `5500 overset@A`. Calculate the change in fringe width, if the screen is at a distance of 1 m from the points which are 1mm apart.

In Young's expriment, interference bands are produced on the screen placed at 1.5 m from the two slits 0.15 mm apart and illuminated by a light of wavelength 6500 overset (@)(A) . Find a) the fringe width and b) the change in the fringe width if the screen is taken away from the slit by 50 cm.

In a biprism experiement, the slit is illuminated by light of wavelength 4800 overset@A . The distance from the slit to the screen is 1 metre. If the distance between the two virtual sources is 0.3 cm, determine the distance between the 5th bright band on one side and 5th dark band on the other side.

In Young's experiment , interference bands are produced on the screen placed at 1.5 m from the two slits separated by a distance of 0.15 mm and illuminated by a light of wavelength 4500 overset (@)(A) . Find the change in fringe width if screen is brought towards the slit by 50 cm .

In a biprism experiment , the slit is illuminated by a light of wavelength of 5000 overset (@)(A) . The distance between the slit and eyepiece is 1 m . If the distance between the two virtual sources is 0.25 cm , then distance between fifth bright band on one side and the sixth dark band on the other sideof the central bright band will be

In a biprism experiment, the fringe width is 0.4 mm, when the eyepiece is at a distance of 1meter away from the slit. The change in fringe width, if the eyepiece is moved through a distance of 25 cm towards the byprism without changing any other arrangement is

In a biprism experiment, red light of wavelength 6500 overset@A was used. It was then replaced by green light of wavelength 5200 overset@A . Find the value of n for which (n + 1)^th green bright band would coincide with the nth bright band, for the same setting.

In a biprism experiment , the distance between the virtual images of the slits is 2.5 mm and the eyepiece is at a distance of 1 m from the slits . If the fringe width is 0.3 mm then the frequency of source of light is

Two straight and narrow parallel slits separated by 3mm are illuminated by a monochromatic light of wavelength 5460 overset (@)(A) . Interference fringes are obtained at a distance of 60 cm from the slits. Find the change in fringe width if the distance between the slits is i) increased by 1 mm and ii) decreased by 1mm.

In biprism experiment,the slit is illuminated by a light of wavelength 5890 overset (@)(A) . The distance between the slit and eyepiece is 80 cm. The two virtual images of the slit are formed 0.2 cm apart. Calculate the change in the bandwidth if the eyepiece is displaced by 10 cm away from the slit.

In Young's experiment, the pinholes are illuminated, by a monochromatic light of wavelength 5200 overset (@)(A) . A screen is placed at 1 m from the slit. If the pinholes are 1.3 mm apart, find i)fringe width ii) the distance between the seventh bright band on one side and sixth dark band on the other side of the central bright band.