Polytechnic (EEE) 1st year ,1st sem, Applied Physics

Applied Physics-I

(Common to All Engineering Courses)

Topic Wise Distribution

Topics

1. Units & Dimensions
2. Errors in Measurement
3. Circular Motion
4. Dynamics of rigid body (Rotational Motion)
5. Fluid mechanics and friction
6. Friction
7. Harmonic Motion
8. Heat & Thermodynamics
9. Acoustics

Detailed  Contents

Units and Dimensions (4 Marks)

S.I. Units & Dimensions of physics quantities, Dimensional formula and dimensional equation. principle of homogeneity of dimensions and applications of homogeneity principle to:-

1. Checking the correctness of physics equations,
2. Deriving relation among various physical quantities,
3. Conversion of numerical values of physical quantities from one system of units into another. Limitations of dimensional analysis.

Errors and Measurement (4 Marks)

Errors in measurements, accuracy and precision, random and systematic errors, estimation of probable errors in the results to measurement (combination of errors in addition, substraction, multiplication and powers). Significant figures, and order of accuracy in respects to instruments.

Circular Motion (5 Marks)

Central forces. Uniform Circular motion (Horizontal and Vertical cases), angular velocity, angular acceleration and centripetal acceleration; Relationship between linear and angular velocity and acceleration; Centripetal and centrifugal forces; Practical applications of centripetal forces; principle of centrifugal.

Motion of Planets and Satellites (5 Marks)

Gravitational force, Acceleration due to gravity and its variation W.R. to height and depth from earth, Kapler's law, Escape and orbital velocity, Time period of satellite, Geostationary, Polar satellites (Concept Only)

Dynamics of Rigid Body (Rotational Motion) (6 Marks)

Rigid body, Rotational motion, Moment of inertia, Theorems (Perpendicular and parallel axis) of moments of inertia (Statement). Expression of M.I. of regular bodies (Lamina, Sphere, Disc, Cylindrical), Concept of Radius of gyration, angular momentum, Conservation of angular momentum, Torque, Rotational kinetic energy. Rolling of sphere on the slant plane. concept of Fly wheel.

Fluid Mechanics (5 Marks)

Surface tension, Capillary action and determination of surface tension from capillary rise method, Equation of continuity (A₁V₁=A₂V₂), Bernoulli's theorem, and its application stream  line and Turbulent flow, Reynold's number.

Friction (4 Marks)

Introduction, Physics significance of friction, Advantage and disadvantage of friction and its role in everyday life. Co-efficients of static and dynamic friction and their measurements. Viscosity, co-efficients of viscosity, & its determination by stoke's method.

Harmonic Motion (6 marks)

Periodic Motion, Characteristics of simple harmonic motion, Equation of S.H.M. and determination
of velocity and acceleration. Graphical representation, Spring-mass system.
Simple pendulum, Derivation of its periodic time, Energy conservation in S.H.M. Concept of phase, Phase difference, Definition of free, forced, undamped and damped vibrations, Resonance and its sharpness, Q-factor.

Heat & Thermodynamics (6 Marks)

Modes of heat transfer (conduction conversion and Radiation). Co-efficient of thermal conductivity Isothermal and adiabatic process. Zero^th First, Second Law of Thermodynamics and Carnot cycle, Heat Engine (Concept Only).

Acoustics (5 Marks)

Definition of pitch, loudness, quality and intensity of sound waves, Echo, reverberation and reverberation time. sabine's formula without Derivation. Control of reverberation time (problems on reverberation time). Acoustics of building defects and remedy.