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 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 Young's double slit experiment , the distance between two slits is 0.1 mm . The distance between the screen and slits is 20 cm . If the slit is illuminated by a light of wavelength 5460 overset (@)(A) then the angular position of the first dark fringe is

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.

A point is situated at 6.5 cm and 6.65 cm from two coherent sources . Find the nature of illumination at the point if wavelength of light is 5000 overset (@)(A) .

In a biprism experiment the distance between the slit and eyepiece is 1 m and two virtual sorces formed by the biprism are 0.5 mm apart . If the wavelength of light is used is 6000 overset (@)(A) , find the band width .

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.

A biprism is placed 5 cm from slit illuminated by sodium light of wavelength 5890 overset (@)(A) The width of the fringes obtained on a screen 75cm from the biprism is 9.424 xx 10^-2 cm . What is the distance between two coherent sources ?

In Young's experiment, the distance between two slits is 0.8mm and the distance of the screen from the slit is1.2 m. If the fringe width is 0.79 mm, the wavelength of light used is

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.

In a biprism experiment, the width of fringe is 0.12 mm when the eyepiece is at a distance of 100 cm from the slit. What would be the width of the fringe if the eyepiece is moved towards the slit by 25 cm ?