NEET UG PHYSICS MCQ: SEMI CONDUCTOR DEVICES

1 Easy

1 of 1

Understanding +4 | -1

If a LED forward biased, then

View answer and explanation

Correct option: A

electrons from the

n

- type side cross the

p-n

junction and recombine with holes in the

p

- type side

Option A (electrons from the

n

- type side cross the

p-n

junction and recombine with holes in the

p

- type side) is correct because this is the fundamental process that produces light in an LED.

More Questions from SEMI CONDUCTOR DEVICES

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I = A{T^2}{e^{q/{V_L}}}

{V_L}

\sqrt{n}.

n

p - n\;

{10^{17}}\mathrm{c}{\mathrm{m}^{ - 3}}

P

{10^{16}}

\mathrm{c}{\mathrm{m}^{ - 3}}

N

kT =

{n_i} = 1.4 \times {10^{10}}

\mathrm{c}{\mathrm{m}^{ - 3}}