MCQ
In $p-$ type semiconductor, the major charge carriers are
- AElectrons
- BProtons
- ✓Holes
- DNeutrons
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[Take the value of speed of light $c,$ as $3 \times 10^{8}$ $\left. ms ^{-1}\right]$
| List I (Position of the object) |
List II (Magnification) |
| (I) An object is placed at focus before a convex mirror | (A) Magnification is -∞ |
| (II) An object is placed at centre of curvature before a concave mirror | (B) Magnification is 0.5 |
| (III) An object is placed at focus before a concave mirror | (C) Magnification is +1 |
| (IV) An object is placed at centre of curvature before a convex mirror | (D) Magnification is -1 |
| (E) Magnification is 0.33 |