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Semiconductor Electronic: Material, Devices And Simple Circuits — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsSemiconductor Electronic: Material, Devices And Simple Circuits1 Mark
MCQ
A $p-n$ junction diode cannot be used:
  • A
    As a rectifier.
  • B
    For converting light energy to electric energy.
  • C
    For getting light radiation.
  • ✓
    For increasing the amplitude of an $AC$ signal
✓

Answer

Correct option: D.
For increasing the amplitude of an $AC$ signal

To increase the amplitude of an $\text{AC}$ signal, transistors are used. $p-n$ junction diodes can be used as rectifiers and in photo$-$diode and $\text{LED.}$

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