 # Engineering Physics

Product: Theory Subject
Categories: Diploma
Department: Common Subjects

#### Features Includes:

• 189 - 3D/2D Animation
• 950 Pages of Content
• 90 Lecture Hours
• 92 Solved Problems
• 103 Quiz
• Suitable for All Technical University Syllabus

#### Course Description

Engineering Physics course is about the engineering skills and the specialization in the study of physics and its applications. The course is a combination of the theoretical concepts and application of the theory part of the concepts of physics.

#### OBJECTIVES:

• Understand the concept of Units and dimensions
• Understand the concept of Elements of Vectors
• Understand the concept of Kinematics
• Understand the concept of Friction
• Understand the concepts of Work, Power, and Energy
• Understand the concept of Simple harmonic motion
• Understand the concept of Heat and thermodynamics
• Understand the concept of Sound
• Understand the properties of matter
• Understand the concept of Electricity and Magnetism
• Understand the concept of Modern physics
###### UNIT - I UNITS AND DIMENSIONS

Physical quantities and types of unit- Introduction to physical quantities - Physical quantities – Unit. Units and dimensions- System of units. Symbols, rules, multiples, sub-multiples of SI Units and advantages - Rules to write units and unit symbols. Dimensions and dimensional formula - Dimensions - Dimensional formulae. Principle of homogeneity and advantages of dimensional method- Principle of homogeneity - Advantages of dimensional analysis. Applications of dimensional analysis- Applications of dimensional analysis - Deriving relation among various physical quantity - Limitations of dimensional analysis - Example problems 1 - Example problems 2 - Example problems 3 - Example problems 4 - Example problems 5 - Example problems 6.

###### UNIT – II ELEMENTS OF VECTORS

Scalars and vectors - About physical quantities - Scalars - Vectors - Representation of vector. Types of Vectors - Types of Vectors. Addition of vectors- Knowledge test - Addition of vectors in same direction - Two forces applied in same direction - Addition of vectors in opposite direction - Force acting in opposite direction - Addition of vectors mutually inclined - Laws of vector addition - Subtraction of vectors - Forces acting in opposite direction. Triangle Law of vectors - Knowledge test - Triangle law of addition of vectors - Alternative statement of Triangle law - Problems for practice. Parallelogram Law of Vectors and Derivation for the resultant - Resultant of the vectors by component method - Parallelogram law - Parallelogram law explanation - Examples of parallelogram law of vectors. Polygon law of vectors - Polygon law of vectors - Explanation - Representation of a vector in space using unit vectors(i, j, k). Resolution of vectors - Resolution of a vector - Magnitude and direction of vector R - Rectangular components - Significance of resultant and components of a vector. Problems on parallelogram law - Example problem 1 - Example problem 2 - Example problem 3 - Example problem 4. Dot product of two vectors and its properties - Dot product or scalar product - Example for dot product - 1 - Example for dot product - 2 - Example for dot product - 3 - Properties of dot product. Cross product of two vectors, their properties and problems - Cross product or vector product - Example of cross product - Properties of cross product - Example problem 1 - Example problem 2 - Example problem 3.

###### UNIT – III KINEMATICS

Recapitulation of equations of motion in a straight line - Linear motion - Mechanics - Definitions - Recapitulation of equations of motion in a straight line. Acceleration due to gravity - Acceleration due to gravity - Vertical motion in the upward and downward direction - Example problem 1 - Example problem 2. Derivations relating to vertical motion- Time of ascent and descent - Velocity on reaching the point of projection - Example problem. Expression for the height of a tower - Equation of Motion for a body, thrown up from the top of a tower - Example problem 1 - Example problem 2. Problems on vertical motion - Example problem 1 - Example problem 2 - Example problem 2. Projectile motion - Projectile motion - Observe the photograph - Horizontal projectile motion - Horizontal range. Derivation for the path of an oblique projectile – Trajectory of an oblique projectile. Derivations for maximum height and time of ascent in oblique Projection- Maximum height - Time of ascent. Time of flight and range derivations in oblique projection - Time of flight - Horizontal range. Explanation to range of an oblique projectile - Explanation to range - Maximum range. Problems on projectiles - Example problem 1 - Example problem 2 - Example problem 3 - Example problem 4.

###### UNIT – IV FRICTION

Friction and types of friction - Causes of friction - Friction - Static friction - Role of friction. Different types of friction and normal reaction - Kinetic friction - Rolling friction - Normal reaction - Body lying on horizontal surface - Body lying on inclined surface. Laws of friction and coefficient of friction - Laws of friction - Coefficients of friction - Example problem 1 - Example problem 2 - Example problem 3. Angle of friction and angle of repose - Angle of friction - Angle of repose. Methods of reducing friction, advantages and disadvantages of friction - Advantages of friction - Disadvantages of friction- Methods of reducing friction. Motion of a body on a smooth inclined plane(sliding down) - Motion of a body on a smooth inclined plane (sliding down). Motion of a body on a rough inclined plane (down) - Motion of a body on a rough inclined plane (sliding down) - Velocity of the body on reaching the bottom of the plane. Motion of a body on a rough inclined plane (sliding up) - Motion of a body on a rough inclined plane (sliding up) - Maximum distance traveled upon the inclined plane.

###### UNIT-V WORK, POWER AND ENERGY

Work - Introduction to work - Definitions of work - Units of work. Expression of work with problems - Expression for work - Example Problem 1 - Example Problem 2. Power - Introduction to power - Units and dimension formula for power - Example Problem 1 - Example Problem 2 - Example Problem 3. Energy - Energy - Units and dimension formula for energy - Different forms of energy - Mechanical energy. Derivations and expressions for potential energy and kinetic energy - Derivation for potential energy - Derivation for kinetic energy - Work - energy theorem - Relation between kinetic energy and momentum - Example Problem 1 - Example Problem 2. Law of conservation of energy - Law of conservation of energy. Problems on conservation of energy- Example Problem 1 - Example Problem 2 - Example Problem 3. Problems on potential energy and kinetic energy - Example Problem 1 - Example Problem 2 - Example Problem 3.

###### UNIT-VI SIMPLE HARMONIC MOTION

Simple harmonic motion - Simple harmonic motion. Expression for displacement and velocity of a particle in S.H.M- Simple harmonic motion as projection of particle executing uniform circular motion - Expression for displacement in S.H.M - Expression for velocity. Expression for acceleration - Expression for acceleration - Example Problem 1. Expression for period and frequency of S.H.M - Expression for time period T - Expression for amplitude and frequency. Phase of S.H.M - Concept of phases - Phase of S.H.M - Example Problem 1 - Example Problem 2 - Example Problem 3 - Example Problem 4. Simple pendulum - Simple pendulum - Derivation of expression for period of simple pendulum - Laws of simple pendulum.

###### UNIT-VII HEAT AND THERMODYNAMICS

Introduction - Heat and temperature - Expansion of gas - Boyle's law. Charles's law, Ideal gas equation, Universal gas constant- Charles's law - Ideal gas - Gas constant - Universal gas constant - Difference between r and R - Problem on Charles's first law - Problem on Charles's second law - Problem on gas constant. Calculation of Universal gas constant - Universal gas constant (R) - Calculation of universal gas constant - Gas equation in terms of density. Problems in heat - Example Problem 1 - Example Problem 2 - Example Problem 3. Isothermal and adiabatic Process - Isothermal process - Adiabatic process - Differences between isothermal process and adiabatic process. Thermodynamics - Thermodynamics - First law of thermodynamics - Second law of thermodynamics - Second law of thermodynamics. Specific heats of a gas - Specific heat of substances - Specific heats of gases - Molar specific heat of a gas - Difference between Cp and Cv. Relation between Cp and Cv - Derivation of relation between Cp and Cv - Example Problem.

###### UNIT-VIII SOUND

Nature of sound waves - Introduction to Sound - Wave and wave Motion. Musical sounds and noise- Musical sounds and noise - Differences between musical sounds and noise. Noise pollution - Noise pollution - Unit of noise. Causes and effects of noise pollution - Causes of noise pollution - Effects of noise pollution. Methods of minimizing noise pollution - Methods of minimizing noise pollution. Beats - Phenomenon of beats - Application of beats - Example Problem 1 - Example Problem 2 - Example Problem 3. Doppler effect - Doppler effect - Applications of Doppler effect - Example Problem 1 - Example Problem 2 - Example Problem 3 - Example Problem 4. Reverberation - Reverberation - Reverberation time - Sabine’s formula. Echoes - Echoes - Applications of echoes - Conditions for good auditorium - Example Problem 1 - Example Problem 2 - Example Problem 3 - Example Problem 4.

###### UNIT-IX PROPERTIES OF MATTER

Introduction of elasticity - Introduction - Elasticity - Plasticity - Stress - Strain - Types of stress - Types of strains. Modulus of elasticity- Hooke's law. Problems on elasticity - Example Problem 1 - Example Problem 2 - Example Problem 3 - Example Problem 4. Surface tension - What do you understand from the following examples ? - Surface tension - Examples of surface tension - Cohesive force - Molecular theory of surface tension. Angle of contact - Angle of contact - Applications of angle of contact - Capillarity - Examples of capillarity - Derivation of expression for surface tension by capillary rise method - Effect of temperature on surface tension. Problems on surface tension - Example Problem 1 - Example Problem 2 - Example Problem 3 - Example Problem 4. Introduction of viscosity - Viscosity - Newton's formula - Units of viscosity or coefficient of viscosity. Poiseuille's equation - Poiseuille's equation - Effect of temperature and pressure on viscosity of liquids - Effects of temperature and pressure on viscosity of gases - Examples of viscosity - Applications of viscosity. Experimental determination of viscosity - Experimental determination of coefficient of viscosity by poiseuille's method - Assumptions of the method. Problems on viscosity - Example problem 1 - Example problem 2 - Example problem 3 - Example problem 4.

###### UNIT-X ELECTRICITY AND MAGNETIS

Introduction to Electricity - Electricity - Voltage - Resistance. Ohm's law and explanation- Ohm's law. Definition of specific resistance, conductance and their units - Laws of resistance - Specific resistance. Statement of Kirchhoff's laws and explanation- Kirchhoff's Current Law (KCL) - Kirchhoff's voltage law. Wheatstone's bridge - Wheatstone Bridge. Meter bridge - Meter bridge. Experimental determination of specific resistance using metre bridge - Experimental determination of specific resistance using metre bridge. Introduction to magnetism - Introduction to magnet. Coulomb's inverse square law of magnetism - Coulomb's inverse square law of magnetism - Example problem 1 - Example problem 2. Definitions of magnetic field and magnetic lines of force - Definitions of magnetic field and magnetic lines of force. Magnetic induction field strength - Magnetic induction field strength (B). Moment of couple on a bar magnet placed in a uniform magnetic field - Moment of couple on a bar magnet placed in a uniform magnetic field - Magnetic induction field strength at a point on the axial line of a bar magnet - Magnetic induction field strength at a point on the equatorial line of a bar magnet. Problems on Ohm's law - Example problem 1 - Example problem 2 - Example problem 3.

###### UNIT-XI MODERN PHYSICS

Photoelectric effect - Photoelectric effect. Einstein's equation of photoelectric effect(Reference)- Einstein's equation of photoelectric effect - Laws of photoelectric emission. Photoelectric cell and its applications- Photoelectric cells - Applications of photoelectric cells. Refraction of light- Refraction of light - Laws of refraction. Critical angle - Critical angle - Total internal reflection. Optical fiber - Optical fiber - Principle and working of an optical fiber - Types of optical fiber - Applications of optical fiber. Superconductivity and superconductor - Superconductivity and superconductor - Examples of superconducting materials - Properties of superconductor - Applications of superconductors.