Physics 2nd Paper MCQ-Sylhet Board-2021

1. In surgery to make instruments germ-free -

2. The potential barrier voltage for $\mathrm{Si}$ is -

3. Young's double slit experiment is shown in the figure.

What order of constructive interference will occur at point $P$ ?

4. Young's double slit experiment is shown in the figure.

If the distance between the slits is halved, the width of a dark fringe will be -

5. The universal gate is -