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Semiconductors

JEE Main level, single correct, medium

3 of 209

Question 3 of 209

In a forward biased P-N junction diode, the depletion layer width:

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Answer: (B) Decreases

Forward bias opposes the built-in barrier potential, thus reducing the width of the depletion layer.

JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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More Physics practice

SemiconductorsWhich of the following logic gates provides output $Y = 0$ only when both inputs $A=1$ and $B=1$ ?
SemiconductorsIn the given digital logic circuit network consisting of a NAND gate followed by a NOT gate, if inputs are $A=1$ and $B=1$ , the final output $Y$ will be:
SemiconductorsIn a common emitter NPN transistor amplifier, input resistance is $1\,\text{k}\Omega$ and load resistance is $10\,\text{k}\Omega$ . If $\beta=50$ , voltage gain is:
SemiconductorsA light emitting diode (LED) is fabricated using GaAs semiconducting material whose band gap is $1.42 \mathrm{eV}$ . The wavelength of light emitted from the LED is :
SemiconductorsThe acceptor level of a p-type semiconductor is $6 \mathrm{eV}$ . The maximum wavelength of light which can create a hole would be : Given $\mathrm{hc}=1242 \mathrm{eV} \mathrm{nm}$ .
SemiconductorsMatch the List I with List II List I List II A Intrinsic Semiconductor I Fermi-level near valence band B n-type semiconductor II Fermi-level at middle of valence and conduction band C p-type semiconductor III Fermi-level near conduction band D Metals IV Fermi-level inside conduction band Choose the correct answer from the options given below:

JEE Main Physics practice question on Semiconductors, with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.