Home
Class 12
PHYSICS
Monichromatic lightof wavelenght 600 nm ...

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?

Text Solution

Verified by Experts

As derived earlier, the total fringe shift `(beta)/(lambda)(mu-1)t`
As each fringe width `=beta`
The number of fringe that will shift `=("total fringe shift")/("fringe width")`
`=(beta)/(lambda)(mu-1) t/(beta)=((mu-1)t)/(lambda)`
`=((1.6-1)xx1.8xx10^(-5)m)/(600xx10^(-9)m)`
=18
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    AAKASH INSTITUTE|Exercise Try yourself|24 Videos

  • WAVE OPTICS

    AAKASH INSTITUTE|Exercise Assignment (Section-A (objective type question(one option is correct)))|56 Videos

  • UNITS AND MEASUREMENTS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION - D)|15 Videos

  • WAVES

    AAKASH INSTITUTE|Exercise ASSIGNMENT ( SECTION-D ( Assertion - Reason Type Questions ))|12 Videos

Similar Questions

Explore conceptually related problems

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

In a Young's experiment, one of the slits is covered with a transparent sheet of thickness 3.6xx10^(-3)cm due to which position of central fringe shifts to a position orginally occupied by 30th fringe. If lambda=6000 Å , then find the refractive index of the sheet.

In the Young's experiment, one of the slit is covered with a transparent sheet of thickness 3.6xx10^(-3) cm due to which position of central fringe shifts to a position originally occupied by 30th bright fringe. The refractive index of the sheet, if lambda=6000Å is

In a young's double slit experiment, one of the slits is covered by a glass sheet of thickness 2.5xx10^(-5) m. Due to this, the position of the central bright fringe is shifted to position originally occupied by the 30th bright fringe. If lamda=5000 Å, then the refractive index of glass is

In Young's double slit experiment the two slits are illuminated with light of wavelength lambda .The thickness of a film of refractive index 1.4 to be introduced in the path of one of the interfering beams so that the central image shifts by one fringe width is