In a biprism experiment, the fringes are observed in the focal plane of the eye piece at a distance of 1.2m from the slits. The distance between the central bright band and 20th bright band is 0.4 cm. When a convex lens is placed between biprism and the eyepiece, the distance between the two vertical magnified images is found to be 0.9 cm. Determine the wavelength of light used.

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 ?

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

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

In an experiment with Fresnel biprism sodium light is used and bands 0.0196 cm in width are observed at the distance of 100 cm from the slit. A convex lens is placed between the biprism and the slit. If the distance between the slit and screen is one meter, the magnified distance apart of the images is found to be 0.7 cms, the lens being 30 cm from the slit, calculate the wavelength of light.

In a biprism experiment, the eye piece is kept at a distance of 1.5 m from the slit and the distance of the 2nd dark band from the central point was found to be 1.2 cm. The sizes of the magnified and diminished images of slits produced by the convex lens are found to be 2.4 cm and 60 cm respectively. Calculate the wavelength of light used.

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 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 biprism experiment the distance between the two virtual images of the slit is 0.1 cm and the distance between the slit and biprism is 1 m .If the band width is 0.058 cm , calculate the wavelength of light .

In biprism experiment ,the eyepiece is placed at a distance of 1.2 metre from the sources.The distance between the virtual sources was found to be 7.5 xx 10^-4 m.Find the wavelength of light if the eye piece is to be moved transversely through a distance of 1.888 cm for 20 fringes.