Home
Class 12
PHYSICS
A parallel beam of light of lambda = 5 x...

A parallel beam of light of `lambda = 5 xx 10^(-7)` m is incident normally on a narrow slit of width 0.2 mm. The diffraction pattern is observed on a screen at the focal plane of a convex lens of f = 50 cm. Find the distance between the first two minima and the first two maxima on the screen.

Text Solution

Verified by Experts

The correct Answer is:
`0.125 xx 10^(-2)`m ; `0.1288 xx 10^(-2)`m
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • DIFFRACTION AND POLARISATION OF LIGHT

    CHHAYA PUBLICATION|Exercise ENTRANCE CORNER|7 Videos

  • DIFFRACTION AND POLARISATION OF LIGHT

    CHHAYA PUBLICATION|Exercise MULTIPLE CORRECT ANSWER TYPE|5 Videos

  • DIFFRACTION AND POLARISATION OF LIGHT

    CHHAYA PUBLICATION|Exercise PROBLEM SET - II|7 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 light of wavelength 6000Å from a distant source falls on a narrow slit of width 0.5 mm. As a result, a diffraction fringe pattern is formed on a screen placed at a distance 2.0 m from the slit. What is the distance between first two minima points formed on the either side of central maximum of this fringe pattern.

A beam of monochromatic parallel rays is incident normally on a narrow slit. A diffraction fringe pattern is formed on a screen, placed normally to the incident rays. Find the phase difference between two rays coming from two ends of the slit at the first minimum formed in the diffraction fringe.

Knowledge Check

  • A beam of light of wavelength 900 nm from a distant source falls on a single slit 0.5 mm wide and the resulting diffraction pattern is observed on a screen 2 m away. The distance of first minimum on either side of central maximum is

    A
    2.4 mm
    B
    4.8 mm
    C
    9.6 mm
    D
    none of the these

  • 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
    5 mm
    B
    0.5 mm
    C
    1 mm
    D
    10 mm

    • Similar Questions

    Explore conceptually related problems

    A parallel beam of light of wavelength lambda is incident normally on a single slit of width d. Diffraction bands are obtained on a screen placed at a distance D from the slit. The second dark band from the central bright band will be at a distance given by

    A parallel beam of light of 500 nm falls on a narrow slit and the resulting diffraction pattern is observed on a screen 1 m away. It is observed that the first minimum is at a distance of 2.5 mm from the centre of the screen. Calculate the width of the slit.

    A beam of light of lambda = 600 nm from a distant source falls on a single slit 1 mm wide and the resulting diffraction pattern is observed on a screen 2 m away. The distance between first dark fringes on either side of the central bright fringe is

    A diffraction fringe pattern of slit width 0.2 mm is formed by a lens of focal length 50 cm. Find the distance between first minimum and the centre of the fringe pattern. The wavelength of the light used: 6 xx 10^(-5) cm.

    A monochromatic light of wavelength 500 nm is incident normally on a single slit of width 0.2 mm to produce a diffraction pattern. Find the angular width of the central maximum obained on the screen. Estimate the number of fringes obatined in Young's double slit experiment with fringe width 0.5 mm, which can be accommodated within the region of total angular spread of the central maximum due to single slit.

    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?

    Home
    Profile