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 ?

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 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 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 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 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.

In double-slit experiment using light of wavelength 600 nm, the angular width of a fringe formed on a distant screen is 0.1^@ . What is the spacing between the two slits ?

The two slits at a distance of 1 mm are illuminated by the light of wavelength 6.5xx10^-7m .The interference fringes are observed on a screen placed at a distance of 1 m. The distance between third dark fringe and fifth bright fringe will be

A parallel beam of green light of wavelength 546 nm passes through a slit of width 0.4 mm. The intensity pattern of the transmitted light is seen on a screen which is 40 cm away. What is the distance between the two first order of minima?