2 Unit(s)

Wave phenomena; Acoustical waves, the harmonic oscillator, damped oscillation, forced oscillation, resonance, equations of simple harmonic oscillation, waves on a string, waves in pipes; closed pipes, open pipes, end correction. Energy in wave motion, longitudinal waves, standing waves, super- position of waves; group and phase velocity, Doppler effect, physical optic, spherical waves, electromagnetic spectrum, interference; Young’s double, slit, thin film. Diffraction: Fraunhofer diffraction, crystal diffraction, polarization of waves, holography, dispersion and scattering. Geometrical optics: rays and beams of light, images in plane and curved mirrors, reflection and refraction at plane surfaces. Mirror formula, reflection at spherical surfaces, thin lenses, spherical aberration, optical lenses, prisms, spectrum of light.