N Nexsus

Engineering Physics — Minor 2026 question paper

MMMUT Mechanical Engineering previous year question paper for Engineering Physics (BSM-181), semester 2, Minor 2026. All 13 questions are listed below, each with a written answer on Nexsus.

Paper details

  • Subject: Engineering Physics (BSM-181)
  • Branch: Mechanical Engineering
  • Semester: 2
  • Exam: Minor 2026
  • Questions: 13

Questions asked in Engineering Physics Minor 2026

  1. Q1. Attempt any three parts of the following. Part(a) is compulsory.
  2. Q1(a). Answer the following [4 marks]
  3. Q1(b). Answer the following [2 marks]
  4. Q1(c). Describe de-Broglie hypothesis and explain it. If an electron has kinetic energy of 20 Kev, what will be the associated de Broglie wave length? Express wavelength in Astronomical units. [2 marks]
  5. Q1(d). State and reduce Heisenberg uncertainty principle. Uncertainty in the position Of an electron (mass = 9.1 x 1004 kg) moving with a velocity 300 m/s, accurate up to 0.001%, will be: [2 marks]
  6. Q2(a). What do you mean by polarized light? How does it differ from the unpolarized light? Discuss Nicol prism method to produce polarized light and explain with the help of neat and clean diagram. [4 marks]
  7. Q2(b). What do you mean by a polarizer and an analyzer? Explain their roles 2 with the help Of neat and clean diagrams. [2 marks]
  8. Q2(c). Obtain the conditions for maxima and minima interference patterns in reflected lights from a thin film. Also explain the process with a neat and clean ray-diagram. [2 marks]
  9. Q3(a). Derive time dependent Schrodinger equation. Explain the physical significance of wave function. Write down momentum, kinetic energy and Hamiltonian operators and explain their meanings. [4 marks]
  10. Q3(b). Derive the formula for obtaining wave functions for a particle trapped in one dimensional rigid box of length (L).Draw ground state, 1st and 2nd excited state wave-functions. [2 marks]
  11. Q3(c). What will be the ratio of the de Broglie wavelengths of an electron and a proton, if both posses same kinetic energy. [2 marks]
  12. QQ2). Attempt two parts of the following. Part (a) is compulsory.
  13. QQ3). Attempt two parts of the following. Part (a) is compulsory.