MCQ
Which among the following is an example of a semiconductor?
  • Cuprous oxide
  • B
    Iron
  • C
    Copper
  • D
    Aluminium

Answer

Correct option: A.
Cuprous oxide

Iron, Copper, Aluminium are metals and are therefore conductors whereas Cuprous oxide is a semiconductor.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A network of four capacitors of capacity equal to $C_1=C, C_2=2 C, C_3=3 C$ and $C_4=40$ are conducted in a battery as shown in the figure. The ratio of the charges on $\mathrm{C}_2$ and $\mathrm{C}_4$ is
The electric field of light wave is given as $\vec E\, = \,{10^{ - 3}}\,\cos \,\,\left( {\frac{{2\pi x}}{{5 \times {{10}^{ - 7}}}} - 2\pi  \times 6 \times {{10}^{14}}t} \right)\hat x\frac{N}{C}$. This light falls on a metal plate of work function $2\,eV.$ The stopping potential of the photoelectrons is ................ $V$
The output in the circuit of figure is taken across a capacitor. It is as shown in figure
If a high power heater is connected to electric mains, then the bulbs in the house become dim, because there is a
Which of the following is the disadvantage of $FM$ over $AM$
A particle is projected with a velocity ( $10\ m/s$ ) along $y-$ axis from point $(2, 3)$ . Magnetic field of $\left( {3\hat i + 4\hat j} \right)$ Tesla exist uniformly in the space. Its speed when particle passes through $y-$ axis for the third time is : (neglect gravity)
The current in flowing along the path $A B C D$ of a cube (shown in the left figure) produces a magnetic field at the centre of cube of magnitude $B$. Dashed line depicts the non-conducting part of the cube. Consider a cubical shape shown to the right which is identical in size and shape to the left. If the same current now flows in along the path $D A E F G C D$, then the magnitude of magnetic field at the centre will be
The electrons of Rutherford’s model would be expected to lose energy because, they:
Mark out the correct options.
Three charges $2 q,-q$ and $-q$ are located at the vertices of an equilateral triangle. At the center of the triangle