Home
Class 12
PHYSICS
If I(0) is the intensity of the pricipal...

If `I_(0)` is the intensity of the pricipal maximum in the single slit diffraction pattern, then what will be its intensity when the slit width is doubled ?

Text Solution

Verified by Experts

The correct Answer is:
C
`I=I_(0)((sintheta)/(theta))^(2)` and `theta=(pi)/(lamda)((ay)/(D))`
for principal maximum `y=0,theta=0`
Hence, intensity will remain same i.e., `I=I_(0)`
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    ALLEN|Exercise Exercise 5 B (Previous Years Questions)|19 Videos

  • UNIT & DIMENSIONS, BASIC MATHS AND VECTOR

    ALLEN|Exercise Exercise (J-A)|7 Videos

Similar Questions

Explore conceptually related problems

If I_0 is the intensity of the principal maximum in the single slit diffraction pattern. Then what will be its intensity when the slit width is doubled?

In a single slit diffraction pattern

How does the angular width of principal maximum in the diffraction pattern vary with the width of slit ?

The ratio of intensities of consecutive maxima in the diffraction pattern due to a single slit is

In a single-slit diffraction experiment, the width of the slit is made half of the original width:

Central fringe obtained in diffraction pattern due to a single slit-

Direction of the first secondary maximum in the Fraunhofer diffraction pattern at a single slit is given by (a is the width of the slit)

The ratio of the intensities at minima to maxima in the interference pattern is 9 : 25. What will be the ratio of the widths of the two slits in the young's double slit experiment ?

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.)

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.)