MMMUT Electrical Engineering previous year question paper for Engineering Physics (BSM-177), semester 1, Minor 1 2020. All 8 questions are listed below, each with a written answer on Nexsus.
Paper details
Subject: Engineering Physics (BSM-177)
Branch: Electrical Engineering
Semester: 1
Exam: Minor 1 2020
Questions: 8
Questions asked in Engineering Physics Minor 1 2020
Q1(a). Write down the number of atoms in a unit cell and coordination number of SC, BCC and FCC lattice. Find out atomic packing factor (APF) for SC and FCC lattice. [3 marks]
Q1(b). Briefly discuss the Bragg's law. How to find out structure of rock salt (NaCl) using Bragg's spectrometer. [2 marks]
Q1(c). Discuss each step to find out the miller indices of a lattice plane which intercepts at (3a, 2b, 2c) in a simple cubic unit cell. Sketch this plane also. [2 marks]
Q2(a). Describe the Davisson-Germer experiment to demonstrate the wave nature of particle? [3 marks]
Q2(b). Calculate the de Broglie wavelength of an electron having energy 10 keV. [2 marks]
Q2(c). What are the postulates of quantum mechanics? Explain the significance of wave function? [2 marks]
QQ.1. Attempt any two parts of the following. Q.1 (a) is compulsory.
QQ.2. Attempt any two parts of the following. Q.2 (a) is compulsory.