Describe biprism experiment to find the wavelength of monochromatic light. Draw the necessary ray diagrams.

A wave of light of ____ wavelength is called monochromatic light.

The maximum intensity in Young’s double slit experiment is I_0 .Distance between the slits is d=2lambda ,where lambda is the wavelength of monochromatic light used in experiment. What will be the intensity of light in front of one of the slits on a screen at a distance D = 6 d?

In a biprism experiment, a source of light has a wavelength of 5500 overset@A . Calculate the change in fringe width, if the screen is at a distance of 1 m from the points which are 1mm apart.

The distance between two consecutive bright fringes in a biprism experiement using light of wavelength 6000 overset@A is 0.32 mm, by how much will the distance change, if light of wavelength 4800 overset@A is used.

In a biprism experiment, red light of wavelength 6500 overset@A was used. It was then replaced by green light of wavelength 5200 overset@A . Find the value of n for which (n + 1)^th green bright band would coincide with the nth bright band, for the same setting.

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 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 Young's double-slit experiment using monochromatic light of wavelength lambda , the intensity of light at a point on the screen where path difference is lambda is K units. What is the intensity of light at a point where path difference is lambda/3 ?

Answer the following questions A plane mirror is kept at the bottom of a trough with water in it as show in the following figure . The ray of light emerging from a source at the point S outside the trough, reaches the point A on the surface of water. Draw a neat ray diagram to show the subsequent path of light and complete the ray diagram.