APPLIED PHYSICS

APPLIED PHYSICS – I
L T P
4 - 2
RATIONALE
Applied physics includes the study of a large number of diverse topics all related to things that go on in the world around us. It aims to give an understanding of this world both by observing and by prediction of the way in which objects will behave. Concrete use of physical principles and analysis in various fields of engineering and technology are given prominence in the course content.

DETAILED CONTENTS

1. Units and Dimensions (10 hrs)
1.1 Physical quantities
1.2 Units - fundamental and derived units, systems of units (FPS, CGS, MKS and SI units) a
1.3 Dimensions and dimensional formulae of physical quantities
1.4 Dimensional equations and principle of homogeneity, applications to conversion from one system of units to another, checking the correctness of physical relations and derivation of simple physical relations, limitations of dimensional analysis
1.5 Significant figures and error analysis

2. Force and Motion (12 hrs)
2.1 Scalar and vector quantities – examples, addition and multiplication (scalar product and vector product) of vectors
2.2 Force, resolution and composition of forces – resultant, parallelogram law of forces, equilibrium of forces, Lami’s theorem
2.3 Newton’s Laws of motion – concept of momentum, Newton’s laws of motion and their applications, determination of force equation from Newton’s second law of motion; Newton’s third law of motion, conservation of momentum, impulse, simple numerical problems
2.4 Circular motion – angular displacement, angular velocity and angular acceleration
2.5 Relation between linear and angular variables (velocity and acceleration)
2.6 Centripetal force (derivation) and centrifugal force
2.7 Banking of roads

3. Work, Power and Energy (12 hrs)
3.1 Work: definition and its SI units
3.2 Work done in moving an object on horizontal and inclined plane (incorporating frictional forces)
3.3 Power: definition and its SI units, calculation of power in simple cases
3.4 Energy: Definition and its SI units: Types: Kinetic energy and Potential energy with examples and their derivation
3.5 Principle of conservation of mechanical energy (for freely falling bodies), transformation of energy from one form to another
3.6 Concept of friction and its applications

4. Rotational Motion (06 hrs)
4.1 Definitions of torque, angular momentum, their relationship
4.2 Conservation of angular momentum (qualitative) and its examples
4.3 Moment of inertia and its physical significance, radius of gyration
4.4 Theorems of parallel and perpendicular axes (statements)
4.5 Moment of inertia of rod, disc, ring and sphere

5. Properties of Matter (12 hrs)
5.1 Elasticity, definition of stress and strain, different types of modulus of elasticity, stress – strain diagram, Hooke’s law
5.2 Pressure – its units, gauge pressure, absolute pressure, atmospheric pressure, Bourdon’s pressure manometers and barometer gauges
5.3 Surface tension – its units, measurement of surface tension by capillary tube method, applications of surface tension, effect of temperature and impurity on surface tension
5.4 Fluid motion, stream line and turbulent flow, Reynolds number
5.5 Viscosity and coefficient of viscosity, derivation of terminal velocity, effect of temperature on viscosity

6. Thermometry (12 hrs)
6.1 Principles of measurement of temperature and different scales of temperature
6.2 Difference between heat and temperature on the basis of K.E. of molecules
6.3 Types of thermometers, Physical properties on which they are based
(No description of individual thermometer)
6.4 Co-efficient of linear, surface and cubical expansions and relation amongst them
6.5 Modes of transfer of heat (Conduction, convection and radiation with examples)
6.6 Co-efficient of thermal conductivity, determination of thermal conductivity of good conductor (Searle’s method) and bad conductor (Lee’s disc method)

LIST OF PRACTICALS
1. To find the diameter of wire using a screw gauge
2. To find volume of solid cylinder and hollow cylinder using a vernier caliper
3. To determine the thickness of glass strip and radius of curvature of a concave surface using a spherometer
4. To verify the parallelogram law of forces
5. To verify conservation of energy of a rolling solid sphere/cylinder
6. To find the surface tension of a liquid by capillary rise method
7. To determine the atmospheric pressure at a place using Fortin’s Barometer
8. To determine the viscosity of glycerin by Stoke’s method
9. To determine the coefficient of linear expansion of a metal rod
10. To find the coefficient of thermal conductivity of copper using Searle’s conductivity apparatus
11. To find the coefficient of thermal conductivity of bakelite sheet (bad conductor) by Lee’s Disc Method
RECOMMENDED BOOKS
1. Test Book of Physics for Class XI (Part-I, Part-II) N.C.E.R.T
2. Test Book of Physics for Class XII (Part-I, Part-II) N.C.E.R.T
3. Applied Physics, Vol. I and Vol. II, TTTI Publications, Tata McGraw Hill, Delhi
4. Concepts in Physics by HC Verma, Vol. I & II, Bharti Bhawan Ltd. New Delhi
5. Fundamentals of Physics by Resnick and Halliday & Walker, Asian Book Pvt. Ltd., New Delhi
6. Berkeley Physics Course, Vol. I, II &III, Tata McGraw Hill, Delhi
7. The Feynman Lectures on Physics by Feynman, Leighton and Sands, Vol. I & II, Narosa Publishing House, Delhi
8. Fundamentals of Optics by Francis A. Jenkins & Harvey E White, McGraw Hill International Editions, Physics Series
9. A Text Book of Optics by Subramanian and Brij Lal, S Chand & Co., New Delhi
10. Comprehensive Practical Physics, Vol, I & II, JN Jaiswal, Laxmi Publishers
11. Engineering Physics by PV Naik, Pearson Education Pvt. Ltd, New Delhi
12. Applied Physics I & II by RA Banwait & R Dogra, Eagle Parkashan, Jalandhar
SUGGESTED DISTRIBUTION OF MARKS
Topic No. Time Allotted (Hrs) Marks Allotted (%)
1 10 10
2 12 20
3 12 20
4 06 10
5 12 20
6 12 20
TOTAL 64 100