Course Code: PHY 1111-0533
Course Title: Physics I
Credits: 3.0
The rationale of the Course:
This course is designed to meet the requirement of the basic knowledge of waves, optics, and thermal physics for Engineering students which is essential for understanding a wide range of physical phenomena including wave properties of matter, light, thermodynamics, and hydrodynamics. This course provides an outline of important phenomena in physics which comprises waves and oscillations, interference, diffraction, polarization, kinetic interpretation of heat, laws of thermodynamics, Carnot’s theorem, fluid mechanics, etc. This course is useful for fields and waves, renewable energy and optical communication, Biomedical Engineering, etc.
Course contents:
1. Waves and oscillations: Differential equation of simple harmonic oscillator, total energy, and average energy, a combination of simple harmonic oscillations, spring-mass system, torsional pendulum; two body oscillation, reduced mass, damped oscillation, forced oscillation, resonance, Progressive wave, power and intensity of wave, stationary wave, group, and phase velocities.
2. Interference of light: Young's double slit experiment, displacement of fringes and its uses, Fresnel bi-prism, interference in thin films, Newton's rings, interferometers;
3. Diffraction: Diffraction by a single slit, diffraction from a circular aperture, resolving power of optical instruments, diffraction at double slit and N-slits, diffraction grating;
4. Polarization: Production and analysis of polarized light, Brewster's law, Malus law, polarization by double refraction, Nicol prism, optical activity, Polarimeters.
5. Optical Defects: Defects of images: spherical aberration, astigmatism, coma, distortion, curvature, Chromatic aberration, and Theories of light.
6. Thermal Physics: Heat and work, the first law of thermodynamics and its applications; Carnot's cycle, the second law of thermodynamics, Carnot's theorem, entropy.
7. The velocity of Sound and Vibration: Velocity of longitudinal waves in a gaseous medium, the velocity of sound in liquids, the velocity of sound waves in isotropic solids, transverse waves along a stretched string, laws of transverse vibration of a stretched string, Doppler effect, calculation of apparent frequency, the intensity of sound, limits of audibility, architectural acoustics.
8. Hydrodynamics: Laminar and turbulent flow, Equation of continuity, Reynolds number & its significance, Bernoulli's theorem and its application.
Viscosity: Newton’s law of viscous flow, Motion in a viscous medium-Stokes’ law, Determination of coefficient of viscosity.
9. Surface tension: Surface tension as a molecular phenomenon,
Kinetic Theory of gases- Kinetic interpretation of temperature, specific heats of ideal gases, equipartition of energy, mean free path, Maxwell's distribution of molecular speeds, reversible and irreversible processes.
Course Learning Outcomes (CLOs):
The students would be able to:
CLO1: Identify and define important physical phenomena involved with basic principles of waves, heat, sound, optics, and fluids.
CLO2: Explain laws of physics associated with hydrodynamics, thermodynamics, propagation of light waves, and sound waves.
CLO3: Apply fundamental knowledge of physical laws and theories to solve different types of analytical problems.
CLO4: Analyze complex physical problems using the kinetic theory of gases, theories of light, sound, fluid mechanics, and thermodynamics.
Learning Materials:
Text Books:
1. Dr. Gias Uddin Ahmad “Physics for Engineers (Part-I)”
2. D. Halliday, R. Resnick, and J. Walker, "Fundamentals of Physics", 10th Edition, Extended.
3. Dr. Tafazzal Hossain “Waves and Oscillations” 2nd ed.
4. B. Lal and N. Subrahmanyam, "Properties of Matter.
Course notes, tutorial problems, and solutions can be accessed from the Google Classroom course module.
Other Learning Materials: Journals, websites, YouTube videos
