Home
Class 12
PHYSICS
Two slits 0.3mm apart are illuminated by...

Two slits `0.3mm` apart are illuminated by light of wavelength `4500Å`. The screen is placed at `1m` distance from the slits. Find the separation between the second bright fringe on both sides of the central maximum.
Data : `d=0.3mm=0.3xx10^(-3)m`, `lambda=4500Å=4.5xx10^(-7)m`, `D=1m`, `n=2`, `2x=?`

Text Solution

Verified by Experts

`2x=2(D)/(d)nlambda`
`=(2xx1xx2xx4.5xx10^(-7))/(0.3xx10^(-3))`
`:.2x=6xx10^(-3)m` (or) `6mm`
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    OSWAAL PUBLICATION|Exercise Topic 3 DIFFRACTION (very short answer type question )|3 Videos

  • WAVE OPTICS

    OSWAAL PUBLICATION|Exercise Topic 3 DIFFRACTION (short answer type question-I )|8 Videos

  • WAVE OPTICS

    OSWAAL PUBLICATION|Exercise Topic 2 INTERFERENCE (long answer type question )|4 Videos

  • SOLVED PAPER 1

    OSWAAL PUBLICATION|Exercise Exercise|39 Videos

Similar Questions

Explore conceptually related problems

In Young's double slit experiment the two slits 0.15mm apart are illuminated by monochromatic light of wavelength 450nm . The screen is 1.0m away from the slits. (a) Find the distance of the second (i) bright fringe, (ii) dark fringe from the central maxima. (b) How will the fringe pattern change if the screen is moved away from the slits ?

Two slits separated by a distance of 1 mm are illuminated with light of wavelength 6.0 xx 10^-7 m . The interference fringes observed on a screen placed 1 m from the slits. The distance between third dark fringe and the fifth bright fringe is equal to :

Light of wavelength 500 nm is incident on a slit of width 0.1 mm. The width of the central bright line on the screen is 2 mm. The distance of the screen is

Monochrmoatic light of wavelength 500nm from a narrow slit is incident on the double slit. If the separation of 10 fringes on the screen 1m away is 1cms . Find the slit separation.

Monochromatic light of wavelength 5000 overset@A from a narrow slit is incident on the double slit. If the separation of 10 fringes on the screen 1 m away is 2 cms. Find the slit separation.

Youngs double slit experiment is performed with light of wavelength 550 nm. The separation between the slits is 1.10 mm and the screen is placed at a distance of 1 m. The distance between the consecutive bright and dark fringes is

A slit of width 0.1 mm is illuminated normally by light of lambda = 5000 overset@A . Diffraction bands are observed on a screen 1 m away from the slit. Third dark band is at a distance x from central maximum is approximately

A screen is placed 2 m away from a narrow slit. If the first minimum lies 5 mm from either side ofthe centre maxima, when plane waves of wavelength 5 xx 10^-7m are used, the slit width is