Plane wavefront of light of wavelenght `5500 overset (@)(A)` is incident on two slits in a screen perpendicular to the direction of light rays. If the total separation of 10 bright fringes on a screen 2 m away is 2 cm, find the distance between the sits .

Light of wavelength 6000 overset (@)(A) is incident normally on a slit . The first minimum in the diffraction pattern is observed to be at a distance of 6 mm from the central maximum on a screen , which is at a distance of 2 m from the slit . Calculate the width of the slit .

A plane wave of wavelength 5500 overset@A is incident normally on a slit of width 2 xx 10^-2 cm . The width of the central maximum on a screen 50 cms away is

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

A monochromatic light of lambda = 5000 overset (@)(A) is incident on two slits separated by a distance of 5 xx 10^-4 m . If a thin glass of thickness 1.5 x 10^-6 m and refractive index 1.5 placed between one of the slits and screen . The phase difference introduced at the position of central maxima 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 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 ?

In a biprism experiment , the distance between the slit and the focal plane of the eyepiece is 1.2 m and the wavelength of light used is 5000 overset (@)(A) . When a convex lens is interposed (between the biprism and eyepiece) the images of the slits in the two positions are 5 mm and 1.8 mm apart . The distance between the centre of the pattern and twelfth dark band 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.