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Engineering Physics I


Engineering Physics I
EG 1104 SH

                        Total:  6 hour /week Year:  I           Lecture: 3 hours/week  Semester:  I      Tutorial: 1 hours/week

Practical:   hours/week
Lab:  2 hours/week Course Description: 
This subject consists of four units related to mechanics, heat and thermodynamics, optics, and magnetism necessary to develop background in physics that supports for the understanding and practicing the related engineering works.
Course Objectives: 
After the completion of this course, students will be able to explain the basic concepts related to the followings and apply them in the field of the related engineering area.
1.     Mechanics.
2.     Heat and thermodynamics.
3.     Optics.
4.     Magnetism.
Course Contents:
Unit 1.      Mechanics:                                                                          [15] 

                      1.1       Basic units and measurements: 
§  Measurement of physical quantities
§  Introductory ideas about dimensions of physical quantities.
§  Scalar and Vector: definitions and examples,  dot and cross product of two vectors
§  Composition and resolution of vectors (Triangle law and parallelogram law of vectors)
                      1.2       Newton’s laws of motion:
§  Newton’s laws of motion (First, second and third laws)
§  Principle of conservation of linear momentum
§  Solid friction: Dynamic and rolling friction, laws of solid friction and its verification
                      1.3.      Uniform circular motion:
§  Angular displacement and velocity.
§  Centripetal force and acceleration.
§  Motion of bicycle rider 
                      1.4.      Gravitation:
§  Newton’s law of universal gravitation.  § Gravitational attraction of earth: 
§  Acceleration due to gravity.
§  Variation of acceleration due to gravity with height, depth, and latitude.
§  Motion of satellites: 
        Orbital velocity,
        Geostationary satellites. 
§  Weightlessness, motion of lift
                      1.5.      Work, energy, and power:
§  Definition and units of work, energy and power.
§  Potential and kinetic energy.
§  Conservation of energy.  § Conservative forces. 
                      1.6.      Simple harmonic motion (SHM): 
§  Simple harmonic motion and its characteristics. 
§  Energy of simple harmonic motion.  § Simple pendulum.
                      1.7.      Equilibrium and rotation of rigid bodies:
§  Forces in equilibrium, torque, couple, C.G. and center of mass. 
§  Moment of inertia.  § Angular momentum and  § Its conservation. 
§  Work done by torque.
Unit 2.      Heat and thermodynamics:                                               [12]

                      2.1       Heat Phenomena and Quantity of Heat:
§  Concept of temperature and thermal equilibrium. 
§  Temperature of scales.
§  Quantity of heat gain or heat loss. 
§  Specific heat capacity. 
§  Determination of heat capacity by the method of mixtures. § Newton's law of cooling.
                      2.2       Change of Phase:
§  States of matter. 
§  Fusion and vaporization. 
§  Evaporation and boiling. 
§  Specific latent heats of fusion and vaporization. 
§  Melting and boiling points. 
§  Introduction of Saturated and unsaturated vapors. 
§  Variation of   melting and boiling points with pressure. 
§  Triple point and critical point.  § Dew point and humidity.
                      2.3       Thermal Expansion:  
§  Coefficients of linear, superficial and cubical expansions of solid and relation between them.  
§  Cubical expansion of liquids. 
§  Real and apparent expansions. 
§  Variation of density due to expansion. 
                      2.4       Heat Transfer:
§  Thermal conduction and thermal conductivity 
§  Convection 
§  Radiation. 
§  Perfectly black body. 
§  Stefan-Boltzman’s law of black body radiation. 
                      2.5       Gas Laws:
§  Boyle’s law, 
§  Charles law and ideal gas equation. 
§  Universal gas constant, 
§  Avogadro number and Boltzman constant. 
§  Volume and pressure coefficients of ideal gas.
                      2.6       Kinetic Theory of Gases:
§  Pressure in an ideal gas from molecular point of view. 
§  RMS speed, mean energy of a molecule of an ideal gas. 
                      2.7       Thermodynamics: 
§  First law of thermodynamics.
§  Different thermodynamic process:
        Adiabatic (equation and work done)
        isothermal (equation and work done)
        Isobaric and Isochoric 
§  Specific and molar heat capacities for different thermodynamic processes, Cp-Cv =R. 
§  Second law of thermodynamics.
§  Efficiency of heat engine 
Unit 3.      Optics:                                                                                   [8] 

                      3.1       Reflection by plane surfaces
§  Nature of light, sources of light
§  Review of reflection by plane surfaces
§  Deviation due to reflection
              Deviation of light due to plane mirror                   Deviation of light due to rotating mirror
                      3.2       Refraction by plane Surfaces:
§  Review of refraction by plane surfaces.  § Lateral shift
§  Total internal reflection, critical angle § Real and apparent depth. 
                      3.3       Reflection by Spherical Surfaces:
§  Review of reflection by spherical surfaces. 
§  Construction of image by ray diagrams and nature of images  § Real and virtual images. 
§  Nature of images formed by spherical mirrors. 
§  Mirror formula for concave and convex mirror
                      3.4       Refraction through Prisms and Lenses:
§  Deviation due to prism and minimum deviation. 
§  Refraction through lenses. 
§  Lens maker equation. 
§  Lens formula for converging lens, diverging lens
§  Formation of images by lenses. 
§  Combination of lenses.  § Magnification, 
§  Power of a lens. 
Unit 4.      Magnetism:                                                                         [10]

                      4.1       Magnets and Magnetic fields:
§  Magnetic poles, magnetic moment, magnetic axis, and magnetic meridian. § Magnetic field.
§  Coulomb’s law for magnetism.
§  Magnetic field due to magnetic poles and bar magnets.
§  Intensity and flux density of magnetic field.
§  Neutral point. § Tangent law. 
                      4.2.      Earth’s Magnetism:
§  Horizontal and vertical components of earth’s magnetic field. § Declination and angle of dip. 
                      4.3.      Magnetic properties of materials;
§  Molecular and modern theory of magnetism. 
§  Para magnetism and diamagnetism:  Permeability and         Susceptibility. 
§  Intensity of magnetization. 
§  Domain theory of ferromagnetism. 
§  Hysterisis

Engineering Physics Practical I                                                          [30] 

1.         Determine volume of hallow cylinder by using vernier calipers.
2.         Determine density of a steel / glass ball by using screw gauge.
3.         Determine thickness of glass plate using spherometer and calculate the area by using millimeter graph paper.
4.         Determine the acceleration due to gravity by using simple pendulum.
5.         Determine the magnetic movement of a bar magnet by using deflection magnetometer.
6.         Determine the refractive index of the material of prism.
7.         Determine specific heat capacity of solid by the method of mixtures.
8.         Determine specific latent heat of ice by the method of mixtures.
9.         Determine specific gravity of different solids by up thrust method.
10.      Determine focal length of a converging lens by displacement method.

             
Textbooks
1.     Advanced level physics by Nelkon and Parker 
2.     A textbook of physics, part I and part II by Gupta and Pradhan
3.     Numerical problems in Engineering Physics for Diploma in Engineering I & II, Pankaj Sharma Ghimire & Krishna Shrestha, S.K. Books, Dhapasi, Kathmandu
4.     Engineering Physics I, Diploma in Engineering (first Year, First part) by Dhan Prasad Poudyal, Khemnath Poudyal, Suresh Prasad Gupta, Binaya Devkota, Laxmi Pustak Bhandar
5.     Physics Practical Guide by U.P. Shrestha, RPB

References:
1.     References to be selected by the related lecturer(s) from among the texts available in the market that meet the content needs of this subject
2.     The related institute may develop its own textbook and approve from the related authority so as to have a prescribed textbook of this subject.


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