Home
Class 12
PHYSICS
In diffraction due to a single slit, wha...

In diffraction due to a single slit, what is the condition for first minimum ?

Text Solution

Verified by Experts

If `a` is width of slit, then conditon for first minimum is `a sin theta = lambda`.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • OPTICS

    PRADEEP|Exercise Very short answer question|5 Videos

  • OPTICS

    PRADEEP|Exercise very short answer questions|1 Videos

  • MAGNETIC EFFECT OF CURRENT AND MAGNETISM

    PRADEEP|Exercise Competition Focus (Multiple Choice Questions)|2 Videos

Similar Questions

Explore conceptually related problems

In diffraction at a single slit, condition for nth secondary minimum is……………. .

The first diffraction minimum due to single slit diffraction is theta for a light of wavelength 5000A if the width of the slit is 1 times 10^21 cm then the value of theta is

Knowledge Check

  • In a diffraction pattern due to a single slit of width 'a', the first minimum is observed at an angle 30° when light of wavelength 5000 Å is incident on the slit. The first secondary maximum is observed at an angle of:

    A
    `sin^(-1)(1/4)`
    B
    `sin^(-1)(2/3)`
    C
    `sin^(-1)(1/2)`
    D
    `sin^(-1)(3/4)`

  • In a diffraction pattern due to a single slit of width 'a' the first minimum is observed at an angle 30 when light of wavelength 5000 Å is incident on the slit. The first secodary maximum is observed at an angle of :

    A
    `sin^(-1)(2/3)`
    B
    `sin^(-1) (1/2)`
    C
    `sin^(-1)(3/4)`
    D
    `sin^(-1)(1/4)`

  • In a diffraction pattern due to a single slit of width a, the firt minimum is observed at an angle 30^(@) when light of wavelength 5000 Å is incident on the slit. The first secondary miximum is observed at an angle of

    A
    `sin^(-1)(2/(3))`
    B
    `sin^(-1)(1/(2))`
    C
    `sin^(-1)(3/(4))`
    D
    `sin^(-1)(1/(4))`

    • Similar Questions

    Explore conceptually related problems

    What is meant by diffraction of light? Show graphically the relative intensity distribution for a single-slit diffraction pattern as a function of sin theta and write the condition for the first secondary minimum of diffraction pattern in terms of path difference .

    In a diffraction pattern due to a single slit of width a, the first minima is observed at an angle 30^(@) when light of wavelength 5000 Å is incident on the slit. The first secondary maximum is observed at an angle of :

    In the diffraction pattern due to single slit, in the direction of theta=0 we get

    In the diffraction pattern due to a single slit of width 'd' with incident light of wavelength 'lamda', at an angle of diffraction 'theta', the condition for first minimum is

    First secondary minima in case of diffraction due to single slit is obtained at a distance x from central maximum position, then

    Home
    Profile