In a biprism experiment, the wavelenght of monochromatic light is `6000Å`. The distance between two virtual images is 6 mm . The number of fringes formed per mm on a screen placed at a distance of 1 m is

In a biprism expeirment to determine the wavelenght of light, the distance between slit and eyepiece is 1,. Wavelenght of light used is 5600Å. When a convex lens is kept at a distance of 30 cm from the slit, the distance of fourth the two images is 0.7 mm. The distance of fourth dark band from the central bright band is

In a biprism experiment, the fringe width is 0.4mm. The distance between the fourthh dark fringe and the sixth bright fringe is

In Yonung's double-slit experiment, two slits which are separated by 1.2 mm are illuminated with a monochromatic light of wavelength 6000 Å The interference pattern is observed on a screen placed at a distance of 1 m from the slits. Find the number of bright fringes formed over 1 cm width on the screen.

In Yonung's double-slit experiment, two slits which are separated by 1.2 mm are illuminated with a monochromatic light of wavelength 6000 Å The interference pattern is observed on a screen placed at a distance of 1 m from the slits. Find the number of bright fringes formed over 1 cm width on the screen.

In Young's double slit experiment the slits apart by 3 mm are illuminated with a source of monochromatic light of wavelength 6000 Å. Interference fringes are obtained on a screen at a distance of 1 m from the slits . The width of the fringe will be

In a biprism experiment, the distance between the sit and the eyepiece is 1m and distance between the two coherent sources is 0.5 mm. If the wavelength of light used I 6000Å , then distance of the 10th bright and from the central bright band is