MCQ
A hole in a P-type semiconductor is
- AAn excess electron
- ✓A missing electron
- CA missing atom
- DA donor level
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Which of the following statement($s$) is(are) correct?
$(A)$ The ray of light will come out for $\theta=30^{\circ}$, for $0 < l < L$.
$(B)$ There is an angle for $l=\frac{L}{2}$ at which the ray of light will come out after two reflections.
$(C)$ The ray of light will $NEVER$ come out for $\theta=60^{\circ}$, and $l=\frac{L}{3}$.
$(D)$ The ray of light will come out for $\theta=60^{\circ}$, and $0 < l < \frac{L}{2}$ after six reflections.

