MH SET 2023 Paper 2 Electronics Science Question Paper (26-Mar-2023)

Question 1

Identify the correct expression for the Einstein relation :

Accepted Answer

$\frac{D}{\mu} = \frac{KT}{q}$

Answer

$\frac{\mu}{D} = \frac{KT}{q}$

Answer

$\frac{D}{\mu} = \frac{q}{KT}$

Answer

$\frac{\mu}{D} = \frac{q}{KT}$

Question 2

Which of the following is/are direct band semiconductor/s ?(1) GaAs(2) Si(3) Ge(4) InP

Accepted Answer

(1) and (4) only

Answer

(2) and (3) only

Answer

(1) and (2) only

Answer

(2) only

Question 3

Which one of the following is the correct expression for the Fermi-Dirac distribution ?

Accepted Answer

$f(\mathrm{E}) = \frac{1}{e^{(\mathrm{E}-\mathrm{E}_f)/\mathrm{KT}}+1}$

Answer

$f(\mathrm{E}) = \frac{1}{e^{(\mathrm{E}_f-\mathrm{E})/\mathrm{KT}}+1}$

Answer

$f(\mathrm{E}) = \frac{1}{e^{(\mathrm{E}-\mathrm{E}_f)/\mathrm{KT}}-1}$

Answer

$f(\mathrm{E}) = \frac{1}{e^{(\mathrm{E}-\mathrm{E}_f)}/\mathrm{KT}}$

Question 4

In the process of photolithography, an optical stepper is used for the exposure of the wafers. Write the correct order of various processes starting from the light source to the die on wafer in an optical stepper.(1) Illumination diffuser(2) Condenser lens(3) Reficle(4) Interferometer

Accepted Answer

(1), (2), (3), (4)

Answer

(1), (3), (2), (4)

Answer

(3), (1), (2), (4)

Answer

(4), (1), (2), (3)

Question 5

Wet oxidation is given by :

Accepted Answer

Si + 2H2O

Answer

Si + O2

Answer

Si + HF

Answer

Si + H2

MH SET 2023 Paper 2 Electronics Science Question Paper (26-Mar-2023)

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