Home
Class 12
PHYSICS
White light is passed through a double s...

White light is passed through a double slit and interference pattern is observed on a screen 2.5 m away. The separation between the slits is 0.5 mm. The first violet and red fringes are formed 2.0 mm and 3.5 mm away from the central white fringe. Calculate the wavelengths of the violet and the red light.

Text Solution

AI Generated Solution

To solve the problem, we will use the formula for the position of the interference fringes in a double-slit experiment, which is given by: \[ y = \frac{\lambda D}{d} \] where: - \( y \) is the distance from the central maximum to the fringe, - \( \lambda \) is the wavelength of the light, - \( D \) is the distance from the slits to the screen, ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • LIGHT WAVES

    HC VERMA ENGLISH|Exercise Objective -1|17 Videos
  • LIGHT WAVES

    HC VERMA ENGLISH|Exercise Objective -2|10 Videos
  • LIGHT WAVES

    HC VERMA ENGLISH|Exercise Question for short Answer|11 Videos
  • GEOMETRICAL OPTICS

    HC VERMA ENGLISH|Exercise Question For short Answer|18 Videos
  • MAGNETIC FIELD

    HC VERMA ENGLISH|Exercise objective2|9 Videos

Similar Questions

Explore conceptually related problems

Coherent light with wavelength 600nm passes through two very narrow slits and the interference pattern is observed on a screen 3.00 m from the slits. The first order bright fringe is at 4.94 mm from the centre of the central bright fringe. For what wavelength of light will the first order dark fringe be observed at this same point on the screen?

Young's interference experiment is performed with monochromatic light. The separation between the slits is 0.500 mm, and the interference pattern on a screen 3.30 m away shows the first side maximum 3.40 mm form the center of the pattern. What is the wavelength ?

A parallel beam of light of 600 nm falls on a narrow slit and the resulting diffraction pattern is observed on a screen .12 m away. It is observed that the first minimum is at a distance of 3 mm from the centre of the screen. Calculate the width of the slit.

With two slits spaced 0.2 mm apart and a screen at a distance of 1 m, the third bright fringe is found to be at 7.5 mm from the central fringe. The wavelength of light used is

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

A beam of light of wavelength 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 the first dark fringes on either side of the central bright fringe is

Two coherent sources are 0.18 mm apart and the fringes are observed on a screen 80 cm away. It is found that with a certain monochromatic source of light, the fourth bright fringe is situated at a distance of 10.8 mm from the central fringe. Calculate the wavelength of light.

Two slits in YDSE are placed 1 mm from each other. Interference pattern is observed on a screen placed 1m from the plane of slits. What is the angular fringe width for a light of wavelength 400 nm

Suppose a monochromatic X-ray beam of wavelength 100 pm is sent through a Young's double slit and the interference pattern is observed on a photographic plate placed 40 cm away from the slit. What should be the separation between the slits so that the successive maxima on the screen are separated by a distance of 0.1 mm?

Monochromatic light from a narrow slit illuminates two parallel slits producing an interference pattern on a screen. The separation between the two slits is now doubled and the distance between the screen and the slits is reduced to half. The fringe width