Home
Class 12
PHYSICS
A narrow slit of width 0.14 mm is illumi...

A narrow slit of width 0.14 mm is illuminated by monochromatic light. On the screen, placed 2 m away, a diffraction fringe is observed. If the second black band lies 16 mm away from the central bright band, then what is the wavelength of the light used?

Text Solution

Verified by Experts

The correct Answer is:
5600Å
Promotional Banner

Topper's Solved these Questions

  • DIFFRACTION AND POLARISATION OF LIGHT

    CHHAYA PUBLICATION|Exercise PROBLEM SET - II|7 Videos

  • DIFFRACTION AND POLARISATION OF LIGHT

    CHHAYA PUBLICATION|Exercise HOTS NUMERICAL PROBLEMS|6 Videos

  • DIFFRACTION AND POLARISATION OF LIGHT

    CHHAYA PUBLICATION|Exercise EXERCISE (SHORT ANSWER TYPE QUESTIONS -II|8 Videos

  • CURRENT ELECTRICITY

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|16 Videos

  • DIGITAL CIRCUITS

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|6 Videos

Similar Questions

Explore conceptually related problems

A single narrow slit of width 0.1 mm, is illuminated with a parallel beam of light of wavelength 600xx10^(-9) m . An diffraction fringe is formed on a screen 40 cm away from the slit. At what distance, will the third minimum band be formed from the central maximum band?

Two straight and parallel slits 0.4 mm apart , are illuminated by a source of monochromatic light. Interfer- ence patter of fringe width 0.5 mm is produced 40 cm away from the slits . Find the wavelength of the light used.

A narrow slit of 2 mm width is illuminated by a monochromatic light of wavelength 500 nm. What would be the intermediate distance between two first minima on either side of a screen kept 1m away?

A narrow slit of width 0.025 cm is placed in front of a convex lens. The slit is illuminated by a light of wavelength 5896Å and an diffraction fringe pattern is formed on the focal plane of the lens. The third minimum on the left is 3 mm away from the third minimum on the right. Calculate the focal length of the lens.

A slit of width a is illuminated by red light of wavelength 650 nm. The first diffraction minimum is observed at an angle theta_(1) = 5.2^(@) from the direction of the incident beam. The width of the slit a in mm is

In a Young's double slit experiment on interference distance between two vertical slits was 0.5 mm and distance of the screen from the plane of slits was 100 cm . If was observed that the 4 th bright band was 2.945 mm away from the second dark band. Find the wavelength of light used.

The distance between the two slits illuminated by a monochromatic source of ligth in Young's experiment for interference is 0.2 cm. Interference fringes of fringes width 0.295 mm is formed on the screen kept at a distance of 1 m from the slits. Determine the wavelength of light .

The angular width of the central maximum in a single slit diffraction pattern is 60^(@) . The width of the slit is 1 mu m. The slit is illuminated by monochromatic plane waves. If another slit of same width is made near it, Young's fringes can be observed on a screen placed at a distance 50 cm from the slits. If the observed fringe width is 1 cm, what is slit separation distance? (i.e. distance between the centres of each slit)

A slit of width a is illuminated by red light of wavelength 650 nm. The first diffraction minimum is observed at an angle theta_(1) = 5.2^(@) from the direction of the incident beam. The angle theta_(2) at which the second minimum is observed is

A light of wave length 589 nm is passed through a single slit of width 1mm and a diffraction pattern is observed. Find angular width of central bright band.