1. Tardigrade
  2. Question
  3. Physics
  4. Young's double slit experiment is carried out by using green, red and blue light, one colour at a time. The fringe widths recorded are βG,βR and βB respectively. Then,

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Young's double slit experiment is carried out by using green,
red and blue light, one colour at a time. The fringe widths
recorded are $\beta_G,\beta_R$ and $\beta_B$ respectively. Then,

IIT JEEIIT JEE 2012Wave Optics

Solution:

Fringe width $\beta =\frac{\lambda D}{d} \, \, or \, \, \, \beta \propto \lambda$
Now, $ \lambda_R > \lambda_G > \lambda_B$
$\therefore \beta_R > \beta_G > \beta_B$