Nigeria's free digital learning hub. Videos, lecture notes, practice questions and leaderboards aligned with CCMAS, NBTE, NCCE, WAEC, NECO, IJMB and JAMB curricula.
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Nigeria's free digital learning hub. Videos, lecture notes, practice questions and leaderboards aligned with CCMAS, NBTE, NCCE, WAEC, NECO, IJMB and JAMB curricula.
Physics · 100 Level · Second Semester
PHY 104 GENERAL PHYSICS 4 is a 100 Level course in the Physics department, taught in the Second Semester. On La-Net Hub you can watch all 30 recorded lectures for free, grouped into 10 series, read the course lecture note online or download it as a PDF, and test yourself with practice questions.
Simple Harmonic Motion, wave phenomena, and optics together form the foundation of classical physics, describing how systems oscillate, how energy propagates through space, and how light interacts with matter. Simple Harmonic Motion refers to periodic oscillations, such as a pendulum or a mass on a spring, governed by restoring forces proportional to displacement. These oscillations connect directly to wave phenomena , where vibrations generate traveling or standing waves that carry energy without transporting matter, seen in sound, water waves, and even electromagnetic radiation. Extending further, the principles of optics explore how light behaves as both a wave and a particle, explaining reflection, refraction, diffraction, and interference, which underpin technologies from lenses and microscopes to fiber optics and lasers. Together, these topics illustrate the deep unity of physical laws, showing how oscillations, waves, and light are interconnected manifestations of energy and motion.
The principles of light encompass its dual nature as both a wave and a particle, explaining fundamental behaviors such as reflection, refraction, diffraction, and interference. These principles reveal how light interacts with matter, enabling us to understand phenomena like color dispersion in prisms, image formation in lenses, and the wave-like interference patterns seen in experiments. The applications of light are vast, ranging from everyday vision and photography to advanced technologies such as fiber-optic communication, lasers in medicine and industry, and telescopes that probe the universe. By studying how light propagates, bends, and interacts with materials, scientists and engineers harness its properties to develop innovations that shape modern life, making optics one of the most impactful areas of physics.
