Two coherent sources P and Q produce interference at point A on the screen where there is a dark band which is formed between 4th bright band and 5th bright band. Wavelength of light used is 6000 Å. The path difference between PA and QA is

In Young's double slit experiment the width of the fringe is 2.0 mm. Find the distance between 9th bright band and 2nd dark band.

Distance between two adjacent bright bands or dark bands is called

In Young.s double slit experiment, what is the path difference between the two light waves forming 5th bright band (fringe) on the screen ?

In Young's double slit experiment what is the path difference between the two light waves forming 5th bright band on the screen ?

Two plane monochromatic coherent waves produce inter- ference pattern (of alternately bright and dark bands) on a screen. When the angle between the two beams is decreased the fringe width

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

Light of wavelength 5000 Å is incident on a double with and the interference fringes are formed on a screen plated at a distance of 1m from the slits. If the distance between the two consecutive dark bands is 1 mm, then the distance between the two slits is