(SEM II) THEORY EXAMINATION 2023-24 ENGINEERING PHYSICS

This document presents the complete B.Tech (Semester II) Engineering Physics Question Paper for the academic session 2023–24, Subject Code BAS201, as officially used in the university theory examination. The question paper has been designed to assess the student’s understanding of both foundational and advanced areas of Engineering Physics, following the prescribed curriculum of modern physics, wave theory, optics, laser technology, electromagnetic principles, superconductivity, and nanoscience.

The paper is divided into three comprehensive sections—Section A, Section B, and Section C—each targeting a different depth of understanding and variety of problem types. Section A focuses on conceptual clarity through short-answer questions, Section B emphasizes numerical and application-based problems, while Section C covers lengthy derivations, theoretical explanations, and analytical reasoning questions that require deep conceptual grounding.

Across these sections, the paper covers a wide spectrum of topics. It evaluates essential foundations such as wave mechanics, interference and diffraction phenomena, quantum effects like the Compton shift, electromagnetic wave propagation in various media, laser operation principles, properties of optical fibers, and material behavior at nanoscales. The structure of the exam ensures that students demonstrate both theoretical knowledge and the ability to apply physics principles to real-world scenarios.

To give a sense of the style and level of the questions included, here are a couple of sample questions extracted from the paper:

Sample Questions from the Paper

“What is the physical significance of a wave function?”
—This question examines a student’s conceptual understanding of quantum mechanics and the probabilistic interpretation of particles.

“Calculate the skin depth at a frequency of 1.6 MHz in aluminium when conductivity and permeability values are given.”
—This type of numerical problem assesses the student’s ability to apply electromagnetic theory to practical calculations.

These examples reflect the nature of questions found throughout the paper—mixing conceptual recall, applied numericals, and theoretical derivations.

Beyond the sample questions mentioned, the actual exam includes a wide range of questions such as:

Deriving electromagnetic wave equations for conducting media

Explaining Rayleigh’s criterion for optical resolution

Determining the refractive index using Newton’s Rings

Discussing Einstein’s A and B coefficients in radiation processes

Analysing attenuation in optical fibers

Understanding changes in material properties at the nanoscale

Solving coherence, frequency, and oscillation-related problems for light

Comparing step-index and graded-index fibers

Discussing Meissner effect in superconductors

And many more questions aligned with the core themes of the subject

These topics are carefully selected to cover all major areas of engineering physics, ensuring students gain holistic exposure to modern scientific ideas and engineering applications.

The question paper serves not only as a test but also as a learning guide. It familiarizes students with the expected exam pattern, the weightage of different units, and the style of questions likely to be asked. The structure helps learners identify important chapters, step-by-step derivations, frequently tested numericals, and scoring concepts that are essential for academic success.

Moreover, this document provides a clear roadmap for students preparing for examinations, while the notes that accompany this content include additional questions of a similar pattern—covering derivations, numerical problems, conceptual explanations, and application-based physics questions. These notes ensure students have sufficient practice beyond the main question paper.

In summary, this Engineering Physics question paper offers a complete academic overview of the subject, carefully balancing theoretical depth, numerical problem-solving, and conceptual understanding. It reflects the educational objectives of the curriculum and provides valuable insight into the type of questions students must prepare for to achieve high performance in the university examinations.