In Young's double slit experiment , light waves of `lambda = 5.4 xx 10^(2)` nm and `lambda = 6.85 xx 10^(1)` nm are used in turn , keeping the same geometry of the set up . Calculate the ratio of the fringe widths in the two cases .

In a Young’s experiment, let lights of lambda= 5.48 xx 10^-7 m and 6.85 xx 10^-8 m be used in turn keeping D and d constant. Compare the fringe widths in the two cases.

A dichromatic Iight of waveIengths lambda_(1) = 250 xx 10^(-9) m and lambda_(2) =350 xx 10^(-9) m are used in Young's doubIe sIit experiment. CaIcuIate the ratio of overIapped fringes due to both the waves in the obtained interference fringes.

In Young's double slit experiment, if the width of 4th bright firnge is 2xx10^(-2) cm then the width of 6 th bright fringe will be cm

In Young's double-slit experiment, two wavelengths of light are used simultaneously where lambda_(2) = 2 lambda_(1) . In the fringe pattern observed on the screen,

In Young's double-slit experiment, two wavelengths of light are used simultaneously where lambda_(2) = 2 lambda_(1) . In the fringe pattern observed on the screen,

In Young's double slit experiment , red light of wavelength 620 nm is used and the two slits are 0.3 mm apart . Interference fringes are observed on a screen 1.3 mm apart . Calculate (i) the distance of slits from the screen and (ii) the fringe width if this distance is doubled .

In Young's double slit experiment if the width of 4^(th) bright fringe is 2 xx 10^(-2) cm, then the width of 6th bright fringe will be ......

(a) Write two characteristics features distinguishing the diffraction pattern from the interference fringes obtained in Young's double slit experiment. (b) Two wavelengths of sodium light 590 nm and 596 nm are used , in turn, to study the diffraction taking place due to a single slit of aperture 1xx10^(-4)m . The distance between the slit and the screen is 1.8m. Calculate the separation between the positions of the first maxima of the diffraction pattern obtained in the two cases.