Physics · 2021
JEE Main · 25 July 2021, Shift 1 · Q8
In the Young's double slit experiment, the distance between the slits varies in time as d(t)=d_0+a_0 sin ω t; where d_0, ω and a_0 are constants. The…
In the Young's double slit experiment, the distance between the slits varies in time as $\displaystyle d(t)=d_0+a_0 \sin \omega t ;$ where $\displaystyle d_0, \omega$ and $\displaystyle a_0$ are constants. The difference between the largest fringe width and the smallest fringe width obtained over time is given as :
Official answer
(4)
$\displaystyle \frac{2 \lambda \mathrm{D} a_0}{\left(d_0^2-a_0^2\right)}$
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