PH8151 Important questions Engineering Physics Regulation 2017 Anna University

PH8151 Important questions Engineering Physics

PH8151 Important questions Engineering Physics Regulation 2017 Anna University free download. Engineering Physics Important questions PH8151 reg 2017 pdf free download

Sample PH8151 Important questions Engineering Physics:

UNIT-I PROPERTIES OF MATTER PH8151 Important questions Engineering Physics Regulation 2017

1. Describe with necessary theory, the method to determine the Young’s modulus of the material of a rectangular bar by uniform bending. (ii)Write a short note on stress – strain diagram.

2. What is cantilever? Derive an expression for the depression at the free end of a cantilever when the other end is rigidly fixed. Explain I shape girders.

3. Obtain the equation for couple per unit twist when a cylindrical rod is fixed at one end and twisted at the other end. Describe the principle and experiment of the torsional pendulum method for determining the rigidity modulus of the material of the wire.

UNIT-II WAVES AND OPTICS PH8151 Important questions Engineering Physics Regulation 2017

1. Derive an expression for differential equation for forced oscillations and obtain its solution. Discuss the different cases involved. Discuss the application of forced oscillation.

2. Derive an expression for differential equation for damped oscillations and obtain its solution. Discuss the different cases involved and their applications.

3. Explain the construction and working of a Homojunction and Heterojunction semiconductor semiconductor laser.

4. Discuss in detail the classification of optical fibers on the basis of material, mode and refractive index profile.

5. Explain the propagation of light through optical fiber. Explain the construction and working of displacement and temperature fiber optic sensors.

UNIT-III THERMAL PHYSICS PH8151 Important questions Engineering Physics Regulation 2017

1. Describe Lee’s disc method and Forbe’s method of determining coefficient of thermal conductivity of a material.

2. Derive an expression for flow of heat through compound media i) series ii) parallel

3. Write a short note on (i) Expansion joints in buildings (ii) bimetallic strips in thermostats.

Subject name	Engineering Physics
Subject Code	PH8151
Semester	1
Regulation	2017 Regulation

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