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PHY 152 — GEOMETRICAL OPTICS AND WAVES

BSc BSc Physics · Kwame Nkrumah University of Science and Technology

Reflection and refraction of plane mirrors. Reflection and refraction of convex and concave mirrors and lenses. Lens defeats and corrections. Simple and compound microscopes, micro-projector, Telescopes, and other optical instruments General properties of oscillations and waves: i. Mechanical oscillations : Simple Harmonic Motion (SHM) ii. Energy in SHM iii. Electrical oscillations, the general wave equation, planes and spherical solutions, phase angles, amplitude and intensity, frequency and wavelength iv. Doppler effect in light and sound. Doppler broadening and red shift. Measurement of plasma temperature i. Damped oscillation, forced oscillations and resonance. Qualitative interference and diffraction of waves Superposition of waves: ii. Linear systems and principle of superposition. Superposition of two wave trains of the same frequency. iii. Formation of standing waves. Nodes and antinodes. Superposition of many waves with random phases. Superposition of waves of equal amplitude but slightly different frequency iv. Amplitude-modulated waves, beats, group and phase velocity, dispersion of waves. v Addition of SHM’s at right angles plane, circular and elliptical polarization. Lissajous figures vi Bandwidth of pulse, range of frequency needed for pulse of given duration. i. Heisenberg’s uncertainty principle in numbers needed for pulse of given length. Heisenberg uncertainty principle in terms of momentum and position Acoustic waves: i. Sound reception, production, recording (The ear, Loudspeaker, Telephone and Earpiece sound recording and reproduction), sound track pitch, musical intervals, intensity and loudness. ii. The decibel. Calculation of decibels, intensity levels, threshold of hearing, loudness, quality iii. Helmholtz resonators iv. Acoustics of rooms. Reverberation v. Acoustic transducers vi. Impedance frequency spectra of complex sounds. Distinction between string percussion and wind instruments vii. Ultrasonic waves (production, properties and applications). Electromagnetic waves: i. Gamma and x-radiation, UV, visible, IR ii. Radio waves sources and general properties iii. Production and detection of electromagnetic waves. iv. Measurement of intensity of light; fundamental parameters and units. Matter waves: i. Spectrum of blackbody radiation. ii. Planck’s quantum hypothesis. iii. Dual nature of light. Wave-particle. Duality of matter iv. De Broglie’s hypothesis, properties of matter waves.

Credits
2
Level
Level 100

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Course details from Courses for BSc. Physics - Physics.