Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AIIMS 2008
Exam
AIIMS
Year
2008
Subject
Physics
Chapter
Wave Optics

AIIMS 2008 · Physics · Wave Optics

In Young's double slit experiment, the distance between two slits...

In Young's double slit experiment, the distance between two slits is made three times then the fringe width will become

Options

  1. A9 times
  2. B1/91 / 9 times
  3. C3 times
  4. D1/31 / 3 times.

Correct answer

D. 1/31 / 3 times.

Step-by-step solution

Fringe width, β=λDd\beta=\frac{\lambda D}{d} From question, d′=3dd^{\prime}=3 d ∴\therefore \quad New fringe width, β′=λDd′\beta^{\prime}=\frac{\lambda D}{d^{\prime}} ∴β′=λD3d=β3\therefore \quad \beta^{\prime}=\frac{\lambda D}{3 d}=\frac{\beta}{3}.
Practice Wave Optics on Quantrex Academy →

More from Wave Optics

An unpolarized light beam of intensity I_0 passes through a series of n Polaroids P_1… MHT CET Medical 2026In a single-slit Fraunhofer diffraction experiment, the first secondary minimum is… MHT CET Medical 2026In the Young's double slit experiment, the intensity of light at a point on the screen is… MHT CET Medical 2026Two images are considered "just resolved" according to Rayleigh's criterion when MHT CET Medical 2026In Young's double slit experiment, the slits are 2\ mm apart and are illuminated by… MHT CET Medical 2026In Young's double slit, 18 fringes are observed to be formed in a certain segment of the… MHT CET Medical 2026When the un-polarised light beam is incident from air to glass (n = 1.5) at the… MHT CET Medical 2026In Young's double-slit experiment, the intensity at a point is ((1)/(4)) of the maximum… MHT CET Medical 2026 Full Wave Optics list All NEET PYQs