A glass plate `1.2 xx 10^(-6)m` thick is placed in the path of one of the interfering beams in a biprism arrangement using monochromatic light of wavelength `6000Å. If the central band shifts by a distance equal to the width of the bands, find the refractive index of glass.

A glass sheet 12xx10^(-3) mm thick (mu_(g)=1.5) is placed in the path of one of the interfering beams in a Yongs's double slit interference arrangement using monochromatic light of wavelenght 6000 A. If the central bright fringe shifts a distance equal to width of 10 bands. What is the thickness of the sheet of diamond of refractive index 2.5 that has to be introduced in the path of second beam to bring th ecentral bright fringe to original position?

On placing a thin film of mica of thickness 12xx10^(-5)cm in the path of one of the interfering beams in young's double slit experiment using monochromatic light, the fringe pattern shifts through a distance equal to the width of a bright fringe. If lamda=6xx10^(-5)cm , the refractive index of mica is

On introducing a thin sheet of mica (thickness 12 xx 10^(-7) cm) in path of one of the interfering beams ( lambda_("vacuum") = 600 nm ) in Young's double-slit experiment, the central fringe is shifted through a distance equal to the spacing between successive bright fringes. Calculate the refractive index of mica.

When a mica plate of thickness 0.1 mm is introduced in one of the interfering beams, the central fringe is displaced by a distance equal to 10 fringes. If the wavelength of the light is 6000 Å , the refractive index of the mica is

Monochromatic light to wavelength 6000Å travels through glass of refractive index (3)/2 . The distance travelled by the wavefront 1 picosecond is

When a mica sheet of thickness 7 microns and mu=1.6 is placed in the path of one of interfering beams in the biprism expriment then the central fringe gets at the position of seventh bright fringe. What is the wavelength of light used?

In young's experiments ,the source of red light of wavelength 7xx10^(-7)m when a thin glass plate of refrative index 1.5 at this wavelength is put in thepath of one of the interfering beams,the central bright fringe shifts by 10^(-3) m to the position previously occupied by the 5th bright fringe,Find the thickness of the plates. When the sources is now change to green light of wavelenght 5xx10^(-7) m ,the central fringe shifts to a position initially occupied by the 6th bright fringe due to red light,Find the refractive index of glass for the green light .Also estimate the changes in fringe width due to the change in wavekength

A thin sheet of glass (refractive index 1.5) of thickness 6 microns, introduced in the path of one of the interfering beams in a double-slit experiment shift the central fringe to a position earlier occupied by the fifth bright fringe. The wavelength of light used is