The fringe width in a Young's double slit inter pattern is `2.4 xx 10^(-4)m`,when a red ligth of wavelength `6,400 overset @A` is used.By how much will it change,if blue ligth of wavelength `4,000 overset@A` is used?

The fringe width in a Young.s double slit interference pattern is 2.4 xx 10^(-4) m, when red light of wavelength 6400 overset@A is used. By how much will it change,if blue light of wavelength 4000 overset@A is used?

In Yound's double slit experiment,wer get 15 fringes per cm on the screen,while using light of wavelength 5,600 overset @A (sodium lamp).How many fringes per cm we get with ligth of wavelength 7,000 overset@A ?

In a Young's double slit experiment,the fringe width obtained is 0.6 cm,when light of wavelength 4,800 overset @A is used .If the distance between the screen and the slit is reduced to half,what should be the wavelength of light used to obtain fringes 0.0045 m wide?

The frequency of ligth in a material is 2 xx 10^(14) Hz and wavelength is 5,000 overset @A .The refractive index of the material will be

In Young's double slit experiment,the slits are 0.2 mm apart.The interfernce fringes for ligth of wavelength 6,000 overset @A are formed on a screen distanct 1.5 m from the sits.Calculate the fringe width.

In Young's doule slit experiment,the slits are 3 m from the screen.The width of the fringes observed with ilght of wavelength 6,000 overset @A is 2 mm.What is the separation of the slits?

The two slits in Young's double slit experiment are seprated by a distance of 0.03 cm.When light of wavelength 5,000 overset@A falls on the slits,nd interference pattern is produced on the screen 1.5 m away.Find the distance of 4th bright fringe from the central maximum.

Young's double - slit experiment for interference is performed with two slits 3xx 10^(-3) m apart and light of wavelength 6,600 overset @A . If the screen is 1 m away from the slits,find out the position of the fourth dark fringe.

Angular width of centrl maximum in the Fraunhofer diffraction pattern of a slit is measured.The slit is iluminated by igth of wavelength 6,000 overset@A .When the slit is illuminated by light of another wavelength,the angular width decreases y 30%.Calculate the wavelength of this light. The same decrease in the angular width of centrl maximum is obtained ,when the original appartus is immersed in a liquid.Fin refractive index of the liquid.