Fill ups
The width of dark and bright frings are……………… .

Fill ups The width of dark and bright frings are……………… .

Dark bands are

Obtain the condition for gettin dark and bright fringes in Young's experiment.Hence write the experssion for the fringe width.

In these question, a statement of asertion followed by a statement of reason is given .Choose the correct answer out of the following choices: Assertion and reason both are correct statements and reason is correct explanation for assertion. Assertion and reason both are correct statements but reason is not correct explanation for assertion. Assertion is correct statement but reason is wrong statement. Assertion is wrong statement and reason is also false statement. Assertion:In Young's double slit experiment ,the fringe width for dark fringes is different from that for white fringes. Reason:In Young's double slit experimnet performed witha source of white light ,only black and bright fringes are observed.

Show that in Young's double slit experiment for interference of light, the widths of the bright and dark fringes are equal.

Define coherent sources of light, fringe width and interference of light. Show that the width of dark fringe is equal to the width of bright fringe in Young's double slit experiment.

In these question, a statement of asertion followed by a statement of reason is given .Choose the correct answer out of the following choices: Assertion and reason both are correct statements and reason is correct explanation for assertion. Assertion and reason both are correct statements but reason is not correct explanation for assertion. Assertion is correct statement but reason is wrong statement. Assertion is wrong statement but reason is correct statement. Assertion:In Young's double slit experiment,the fringe width for dark fringes is equal to that for white fringes . Reason:In Young's double slit experiment performed with a source of white light ,only black and white fringes are observed.

A beam of light consisting of two wavelegnths, 6,500 overset @A and 5,200 overset @A is used to obtain interfrerence fringes in a Young's double slit experirmejnt.The distance between the slits and the screen is 120 cm. Find the distance of third bright fringe on the screen from the central maximum for the wavelength 6,500 overset @A .