JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech I Year ENGINEERING PHYSICS Previous Question Paper (May/June - 2019 - R15)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks.
PART- A
What is Ionic Bond?
Answer
An ionic bond is a type of chemical bond formed through the electrostatic attraction between oppositely charged ions. It typically occurs when one atom transfers electrons to another, resulting in the formation of a cation and an anion.
What is Hydrogen Bond?
Answer
A hydrogen bond is a weak electrostatic attraction between a hydrogen atom covalently bonded to a highly electronegative atom (such as N, O, or F) and another electronegative atom with a lone pair of electrons. It is stronger than van der Waals forces but weaker than ionic or covalent bonds.
Write two important properties of Matter Waves.
Answer
Sign in to view the complete answer paper.
What is the main difference between Micro Canonical and Canonical Ensembles?
Answer
Sign in to view the complete answer paper.
What is Polarizability?
Answer
Sign in to view the complete answer paper.
What is the Magnetization?
Answer
Sign in to view the complete answer paper.
Write applications of lasers.
Answer
Sign in to view the complete answer paper.
Define Numerical Aperture.
Answer
Sign in to view the complete answer paper.
Explain about top down approach for synthesis of nanomaterials.
Answer
Sign in to view the complete answer paper.
What is Sabine’s Formula? Explain.
Answer
Sign in to view the complete answer paper.
PART- B
What is packing fraction? Deduce packing factor for BCC structure.
Answer
Sign in to view the complete answer paper.
Write notes on Frenkel and Schottky defects with diagrams.
Answer
Sign in to view the complete answer paper.
Explain with suitable examples the covalent and metallic type of bondings in solids.
Answer
Sign in to view the complete answer paper.
Write a note with neat diagram of Structure of Diamond.
Answer
Sign in to view the complete answer paper.
Derive an expression for Schrödinger’s Time Independent Wave Equation.
Answer
Sign in to view the complete answer paper.
Describe Concept of Effective Mass of an Electron.
Answer
Sign in to view the complete answer paper.
Write an essay on Davisson and Germer’s Experiment.
Answer
Sign in to view the complete answer paper.
Explain Origin of Energy Band Formation in Solids.
Answer
Sign in to view the complete answer paper.
Derive an expression for electronic polarizability in terms of the radius of the atom.
Answer
Sign in to view the complete answer paper.
Write short notes on piezoelectricity.
Answer
Sign in to view the complete answer paper.
Write notes on Type-I and Type-II Superconductors along with the applications of Superconductors.
Answer
Sign in to view the complete answer paper.
Discuss about Meissner Effect.
Answer
Sign in to view the complete answer paper.
Discuss about Diffraction grating experiment with the help of diagram.
Answer
Sign in to view the complete answer paper.
Write short notes on Nicol prism.
Answer
Sign in to view the complete answer paper.
Write an essay on construction and working of Helium-Neon Laser.
Answer
Sign in to view the complete answer paper.
What is the importance of the Attenuation in Optical Fibers?
Answer
Sign in to view the complete answer paper.
Write an essay on Chemical Vapour Deposition.
Answer
Sign in to view the complete answer paper.
Discuss about Solar cell, LED and Photo Diodes.
Answer
Sign in to view the complete answer paper.
What are the factors affecting the architectural acoustics and suggest their remedies.
Answer
Sign in to view the complete answer paper.
Write notes on Quantum Confinement.
Answer
Sign in to view the complete answer paper.