Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
Manipal MET2019PhysicsWave Optics

In Young's double slit experiment the wavelength of light was changed from 7000 Å to 3500 Å . While doubling the separation between the slits which of the following is not true for this experiment?

Options

  1. AThe width of the fringes changes
  2. BThe colour of bright fringes changes
  3. CThe separation between successive bright fringes changes
  4. DThe separation between successive dark fringes remains unchanged

Correct answer

A. The width of the fringes changes

Step-by-step solution

aligned = & D d & ₁ ₂ = ₁ ₂ d₂ d₁ = 7000 3500 2 d d & ₂= ₁ 4 aligned So, the width of fringes changes.

Practice Wave Optics on Quantrex Academy →

More from Wave Optics

If the intensity of the central maximum in the Young's double slit experiment is I₀ , what will be the intensity at the same region when one of the slits is blocked by an opaque ob 2026The width of the fringes obtained with a light of wave length 6.2 10⁻⁸ m is 1.82 mm. If the whole apparatus is immersed in a liquid of refractive index 1.3, what will be the width 2026In a single slit diffraction experiment, the diffraction pattern is observed on a screen placed at a distance of 2m from the slit of 1mm width. If the distance between the first da 2026A diffraction pattern due to a single slit of width 0.12mm is obtained with a blue green light of wavelength 500 nm. The angular separation between central maximum and second order 2026In a Young's double slit experiment, the slit separation is 1.5 mm. The setup is illuminated simultaneously by light of wavelengths 6000 Å and 8000 Å. The screen is placed at a dis 2026In a Young's double slit experiment, the slits are separated by 0.5 mm. Fringes are obtained on a screen which is placed at distance 1 m away from the slits. When the screen is mov 2026In Young's double slit experiment, how many maxima can be seen on a screen (including central maxima) if d = 5 2 (where is wavelength of light and d is distance between the two sli 2026In an experiment, two polariods are arranged such that the intensity of the polarised light emerged from the second polaroid is 37.5 % of the intensity of the unpolarised light inc 2025 Full Wave Optics list All Manipal MET PYQs