Phy 115: Physics (Sound, Light and Heat)
Sound : Simple harmonic
motion: Differential equation of simple harmonic oscillation, Energy of simple
harmonic oscillator, Damped oscillation. Forced oscillation; Characteristics of
mechanical waves, Equations of a travelling wave, Energy; Stationary waves:
Beats, Physical qualities of sound, Reflection, Transmission and intensity of
sound waves, Variation of sound intensity with distance, Units of sound
intensity: Decibel and other units, Doppler's principle.
Light : Illumination
and photometry, Luminous intensity; Their measurements and units,
Phosphorescence, Fluorescence, Discharge lamps. Theories of light:
Interference: Young's double slit experiment, Determination of thickness of a
film, Diffraction: Diffraction due to a single slit, Polarization: Different
methods of polarization, Intensity of polarized light.
Heat : Humidity;
Vapour pressure, Temperature related humidity; Transmission of heat:
Conduction: Conductivity, Rectilinear flow of heat, Determination of
thermo-conductivity of good and bad conductors, Heat flow through compound
walls; Convection: Free and forced convection, Domestic and industrial
applications, Ventilation; Radiation: Different Laws of radiation, Black body
radiation, Radiation from surfaces, Solar radiation.