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Engineering Physics (BAS101) AKTU predicted paper 2026-27

AI-predicted paper for Engineering Physics based on 9 past papers (2022, 2023, 2024, 2025, 2026). NOT an official AKTU paper. Use as a revision tool only.

Paper pattern

  • Section A: Attempt all questions. (14 marks)
  • Section B: Attempt any THREE questions out of five. (21 marks)
  • Section C: Attempt ONE question from each pair (a or b). (35 marks)

Why these questions

  • Unit 3 (Wave Optics) dominates — 23% avg weightage
  • Asked every year: Compton Effect, de-Broglie Matter Waves
  • Due for comeback: Rayleigh Criterion Resolution
  • Low priority (never asked): Stokes and Divergence Theorem
  • Most repeated topic: Interference of Light

Section A – 2-mark questions

  • State the assumptions made by the Planck's to explain black body radiation curve.
  • Define the concept of Skin depth for high and low frequency waveforms.
  • What happens if the slit is smaller than wavelength in diffraction pattern?
  • What is an optical fibre? How does a light signal propagate through it?
  • Show that perfect diamagnetism is an essential property of the superconductor.
  • Two independent sources of light cannot produce interference, why?
  • What was the objective of conducting Davisson-Germer experiment?

Section B – sample questions

  • Explain the concept of black body radiation and state the main features of Planck's radiation law.
  • Deduce the equation for the propagation of plane electromagnetic waves in the free space. Show that the electric and magnetic vectors are normal to each other and to the direction of propagation of the wave.
  • What is the critical magnetic field? How does it vary with temperature? Critical temperature of superconductor when no magnetic field is applied is Tc. Find the temperature at which the critical field becomes half of its value at 0 K.