(SEM I) THEORY EXAMINATION 2021-22 PHYSICS

This Physics (KAS-101) question paper is divided into three sections – A, B, and C, covering important engineering physics concepts, and students must attempt all sections.

SECTION A — Very Short Answer (20 Marks)

Students must answer all 10 questions, each carrying 2 marks.
Topics include:
– Inertial & non-inertial frames
– Maxwell’s equations
– Skin depth
– de-Broglie hypothesis
– Electromagnetic vs matter waves
– Coherent sources
– Rayleigh criterion
– Propagation of optical fiber
– Components of laser
– Relation E = pc for massless particles

SECTION B — Short Answer (Any 3 | 30 Marks)

Each question carries 10 marks.
Topics include:
– Length contraction & Lorentz invariants
– Radiation pressure & current densities
– Schrödinger’s time-independent equation
– Thin film interference
– Numerical aperture & modes of optical fiber

SECTION C — Long Answer (Any 1 from each set | 30 Marks)

Students answer one question from each subsection (Q3, Q4, Q5, Q6, Q7).
Topics include:
– Time dilation
– Einstein’s mass-energy relation
– Poynting theorem
– EM wave equation
– Particle in 1-D box
– Compton effect
– Newton’s rings
– Fraunhofer diffraction
– Types of optical fibers
– Spontaneous & stimulated emission

This Physics (KAS-101) question paper covers core engineering physics topics including relativity, electromagnetic theory, quantum mechanics, optics, and laser fundamentals. It consists of three sections with short, medium, and long descriptive questions.