NEET UG PHYSICS MCQ: SEMI CONDUCTOR DEVICES

1 Medium

1 of 1

Application +4 | -1

P

-type semiconductor has acceptor levels

57\;meV

above the valence band. The maximum wavelength of light required to create a hole is (Planck’s constant

h = 6.6 \times {10^{ - 34}}J

-s)

View answer and explanation

Correct option: C

217100

\mathop A\limits^ \circ

Option C (217100

\mathop A\limits^ \circ

) is correct because it is calculated using

E = \frac{{hc}}{\lambda}

and converting the energy from meV to Joules.

More Questions from SEMI CONDUCTOR DEVICES

Practice All Chapter MCQs →

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}}