MCQ
The equivalent resistance between the points $A$ and $B$ is :-


- A$\frac{36}{7}\, \Omega$
- B$10\, \Omega$
- ✓$\frac{85}{7}\, \Omega$
- DNone of these

$=\frac{85}{7}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.


Reason : For a dark fringe intensity is zero.
Reason : The fringe width is inversely proportional to the distance between the two slits.