DI01000121 · Semester 1 · 5G scheme
Applied Physics
Notes and solutions following the Gujarat Technological University (GTU) syllabus for DI01000121. Independent material — not issued by the university.
Materials
Past Papers
Original question papers from previous exams.
PYQ Solutions
Past university papers, fully solved.
Solved past papers — detailed answers
33 pages · English + ગુજરાતી
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Syllabus units
Unit 1: Units and Measurements
- 1.1 Measurement and units in engineering and science
- 1.2 Physical quantities: fundamental and derived quantities,
- 1.3 Systems of units: CGS, MKS and SI, Interconversion of units MKS to CGS and vice versa, requirements of standard units and unit systems,
- 1.4 Principle, construction, working, applications of Vernier calipers and Micrometer screw gauge with their errors.
- 1.5 Accuracy, precision , error, estimation of errors: absolute error, relative error ,percentage error, rounding off, significant digits
Unit 2: Circular Motion
- 2.1 Force, momentum, law of conservation of linear momentum, its applications such as recoil of gun, impulse and its applications
- 2.2 Circular motion, angular displacement, angular velocity, angular acceleration and their interrelation
- 2.3 Centripetal and centrifugal forces examples: banking of roads and bending of cyclist
Unit 3: General Properties of matter
- 3.1 Elasticity
- 3.1.1 Deforming and restoring Force
- 3.1.2 Stress-Strain with their types
- 3.1.3 Hooke’s law
- 3.1.4 Moduli of elasticity, Young’s modulus, Bulk modulus, Shear modulus
- 3.1.5 Stress-Strain curve
- 3.2 Surface Tension
- 3.2.1 Surface tension; concept and units
- 3.2.2 Cohesive and adhesive forces
- 3.2.3 Molecular range and sphere of Influence
- 3.2.4 Laplace’s molecular theory
- 3.2.5 Angle of contact, Ascent Formula (No derivation)
- 3.2.6 Relation between Surface tension and Surface energy
- 3.2.7 List the Applications of surface tension
- 3.2.8 Effect of temperature and impurity on surface tension
- 3.3 Viscosity
- 3.3.1 Viscosity and its SI units
- 3.3.2 Newton’s law of Viscosity
- 3.3.3 Viscous force, velocity gradient and coefficient of viscosity and its SI units.
- 3.3.4 Types of fluid motion, stream line and turbulent flow, critical velocity, Reynold’s number
- 3.3.5 Stokes’ law : free fall of an object through viscous medium and terminal velocity*( No derivation)
- 3.3.6 Effect of temperature on viscosity.
Unit 4: Heat and Thermometry
- 4.1 Heat and temperature
- 4.2 Modes of Heat transfer: Conduction, Convection( natural and forced) and Radiation*
- 4.3 Temperature measurement scales: Kelvin, Celsius and Fahrenheit and interconversion between them
- 4.4 Heat capacity and specific heat
- 4.5 Types of thermometers: Mercury thermometer, Bimetallic thermometer: Principle, Construction, Working, Advantages and Disadvantages) and their uses.
- 4.6 Coefficient of thermal conductivity and its engineering applications.
- 4.7 Expansion of solids, coefficient of linear expansion
Unit 5: Waves, ultrasonic and Semiconductor
- 5.1 Waves, wave motion, and types of waves: longitudinal and transverse waves
- 5.2 Frequency, periodic time, amplitude, wave length and wave velocity and their relationship
- 5.3 Superposition of waves, Interference: constructive and destructive interference, conditions for stationary interference pattern.
- 5.4 Reverberation, reverberation time, echo, noise and coefficient of absorption of sound
- 5.5 Sabine’s formula ( derivation not required) for reverberation time, methods to control reverberation time and their applications
- 5.6 Ultrasonic waves and their properties, List the applications of ultrasonic waves in the field of engineering and medical
- 5.7 Conductors, Semiconductors and insulator in reference to Energy band gap*
- 5.8 Intrinsic Semiconductors
- 5.9 Extrinsic Semiconductors: P & N type, electric conduction in N-type and P-type semiconductor, temperature dependence of conductivity of semiconductor.
About this course
Physics is branch of science mainly deals with interaction of energy and matter and considered as the mother of all engineering disciplines. Diploma engineers (technologists) have to deal with various materials while using/ maintaining machines. More over the basic knowledge of principles of physics helps diploma students to lay foundations of core engineering courses. The laws and principles of physics, formulae and knowledge of physical phenomena and physical properties provides a means of estimating the behavior of things before we design and observe them. This course of modern physics has been designed as per program requirements to help students to study the relevant core engineering courses. The complicated derivations have been avoided. This course will help the diploma engineers to use/apply the basic concepts and principles of physics solve well designed engineering problems and comprehend different technology based applications.