In Young's double-slit interference experiment, the slit separation is made 3 fold. The fringe width becomes

Question

In Young's double-slit interference experiment, the slit separation is made 3 fold. The fringe width becomes (A) (1/3) times (B) (1/9) times (C) 3 times (D) 9 times

Tardigrade Admin · Accepted Answer

β propto (1/d)⇒ If d becomes thrice, then β become becomes (1/3) times.

Q. In Young's double-slit interference experiment, the slit separation is made $3$ fold. The fringe width becomes

$\frac{1}{3}$ times

$\frac{1}{9}$ times

$3$ times

$9$ times

$β \propto \frac{1}{d} \Rightarrow$ If $d$ becomes thrice, then $β$ become becomes $\frac{1}{3}$ times.

Q. In Young's double-slit interference experiment, the slit separation is made 3 fold. The fringe width becomes

31​ times

91​ times

3 times

9 times