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Engineering Physics — Minor 2024 question paper

MMMUT Computer Science and Engineering previous year question paper for Engineering Physics (BSM-131), semester 1, Minor 2024. All 13 questions are listed below, each with a written answer on Nexsus.

Paper details

  • Subject: Engineering Physics (BSM-131)
  • Branch: Computer Science and Engineering
  • Semester: 1
  • Exam: Minor 2024
  • Questions: 13

Questions asked in Engineering Physics Minor 2024

  1. Q1. Attempt any Three parts of the following. Q.1(a) is compulsory.
  2. Q1(a). Describe the Davisson and Germer experiment to demonstrate the wave nature of a particle. [4 marks]
  3. Q1(b). Explain the construction and working of ruby laser with necessary diagram. [2 marks]
  4. Q1(c). Find the energy of an electron moving in one dimension in an infinitely high potential box of width 1 ∘A. (Mass of the electron is 9.1 × 10^-34 kg and h = 6.63 × 10^-34 Js.) [2 marks]
  5. Q1(d). Explain the phenomena of interference. What are the conditions to get the sustained interference of light? [2 marks]
  6. Q2. Attempt any Two parts of the following. Q.2(a) is compulsory.
  7. Q2(a). Discuss the phenomenon of Fraunhofer diffraction at a single slit and show that the relative intensities of the successive maxima are nearly 1: 4/9π^2 : 4/25π^2 : 4/49π^2 : … [4 marks]
  8. Q2(b). The indices of refraction of quartz for right-handed and left-handed circularly polarised light of wavelength 7620 ∘A are 1.53914 and 1.53920, respectively. Calculate the rotation of the plane of polarisation of the light in degrees produced by a plate 0.5 mm thick. [2 marks]
  9. Q2(c). In Newton's ring experiment, the diameter of 4th and 12th dark rings are 0.4 and 0.7 cm, respectively. Find the diameter of 20th dark ring. [2 marks]
  10. Q3. Attempt any Two parts of the following. Q.3(a) is compulsory.
  11. Q3(a). Solve Schrödinger's wave equation for a particle in a one-dimensional rigid box of side L and having potential energy (V) as follows: V(x) = ∞ for x < 0 and x > L and V(x) = 0 for 0 ≤ x ≤ L [4 marks]
  12. Q3(b). A proton is accelerated to one-tenth of the velocity of light. If the velocity can be measured with a precision of ± 1%, what will be the uncertainty in its position? (m_p = 1.675 × 10^-27 kg) [2 marks]
  13. Q3(c). An optical fibre has an NA of 0.20 and a cladding refractive index of 1.59. Determine the acceptance angle for the fibre in water, which has refractive index of 1.33. [2 marks]