A monochromatic beam of bright of light of wavelength `5000 Å` is used in Young's double slit experiment. If one of the slits is covered by a transparent sheet of thikness `1.4 xx 10^(-5) m`, having refractive index of its medium 1.25. Then the number of fringes shifted is
Text Solution
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The correct Answer is:
7
Number of fringe is `t ((mu - 1) D// d)/(D lambda // d) = (mu - 1)/(lambda) = 7`
Monichromatic lightof wavelenght 600 nm is used ina Young's double slilt experient. One of the slits is covered by a transparent sheet of thicknes 1.8xx10^-5 m made of a material of refractive index 1.6. How many fringe will shift due to the introduction of the sheet?
Using monochromatic light of wavelength lamda in Young's double slit experiment, the eleventh dark fringe is obtained on the screen for a phase difference of _____.
In Young's double slit experiment the fringe width is 4mm .If the experiment is shifted to water of refractive index 4/3 the fringe width becomes (in mm)
The young's double slit experiment is done in a medium of refractive index 4//3 .A light of 600nm wavelength is falling on the slits having 0.45 mm separation .The lower slit S_(2) is covered by a thin glass sheet of thickness 10.4mu m and refractive index 1.5 .the intereference pattern is observed ona screen placed 1.5m from the slits are shown (a) Find the location of the central maximum (bright fringe with zero path difference)on the y-axis. (b) Find the light intensity at point O relative to the maximum fringe intensity. (c )Now,if 600nm light is replaced by white light of range 400 to700 nm find the wavelength of the light that from maxima exactly point O .[All wavelengths in this problem are for the given medium of refractive index 4//3 .Ignore dispersion]
In Young's double slit experiment, the distance between the two slits is 0.1 mm and the wavelength of light used is 4 xx 10^(-7) m . If the width of the fringe on the screen is 4 mm , the distance between screen and slit is
