MH SET 2025 Paper 2 Electronics Science Question Paper (15-Jun-2025)

Question 1

In the semiconductors, what is the role of a doping ?

Accepted Answer

It introduces impurities to modify the electrical properties of the material

Answer

It increases the bandgap of the semiconductor material

Answer

It enhances the thermal conductivity of the semiconductor

Answer

It decreases the resistivity of the semoconductor material Electronic Science

Question 2

In semiconductor manufacturing, what does the term wafer refer to ?

Accepted Answer

A thin slice of single-crystal semiconductor material

Answer

The metallic layer on top of a semiconductor device

Answer

The insulation material between different semiconductor layers

Answer

The encapsulation material used in semiconductor packaging

Question 3

In a Zener diode, what is the primary role of the depletion region ?

Accepted Answer

To enhance the reverse breakdown voltage

Answer

To increase the forward bias current

Answer

To provide mechanical support to the diode

Answer

To reduce the capacitance of the diode

Question 4

How does an LCD pixel control the passage of light to create different colors ?

Accepted Answer

By altering the liquid crystal alignment

Answer

By changing the pixel’s size

Answer

By adjusting the backlight intensity

Answer

By using a color filter

Question 5

What is the primary role of barrier layers in quantum well devices ?

Accepted Answer

To confine charge carriers in one dimension

Answer

To increase carrier concentration

Answer

To enhance thermal conductivity

Answer

To reduce the overall device size