PPT-Light II Physics 2415 Lecture 32

Michael Fowler UVa Todays Topics Huygens principle and refraction Snells law and applications Dispersion Total internal reflection Huygens Principle Newtons contemporary Christian Huygens believed light to be a wave and pictured its propagation as follows at any instant the wave front has reached a certain line or curve From every point on this wave front a . Sensors. (bit incomplete. , still). Sensing Categories. Voltage. starting easy: analog in. Distance. acoustic or light. Speed. hard; usu. via distance. Acceleration. accelerometers. Light Level. phototransistors, photodiodes. NEMS-NMMB Tutorial. 1 April 2015. Brad Ferrier. (. Dusan. . Jovic. , Ratko . Vasic. , . Weiguo. Wang). Outline. Physics options and parameter settings . (slides 3-18). Shortwave (SW) and longwave (LW) radiation . behaviour. of the universe, from the very smallest scales of sub-atomic particles to the very largest in cosmology. It applies these laws to the solution of practical problems and to the development of new technologies. . Six sub-departments covering most areas of Physics research. Condensed matter physics. Astrophysics. Atmospheric, oceanic and planetary physics. Atomic and. Laser physics. Particle . physics. Theoretical physics. Medical Physicists. Health care professionals with specialized training in the medical applications of physics.. Specialized in radiation physics, ultrasound, magnetic and electric fields, infra-red and ultraviolet light, heat and lasers in diagnosis and therapy. Michael Fowler, . UVa. Today’s Topics. A bit more about mirrors…. Refraction. Lenses. Ray tracing to locate image. Concave Mirror Focusing Sunlight. This solar collector is really many small flat mirrors, but equivalent to a concave mirror focusing parallel rays to a point half way from the center of the mirror to its center of curvature.. Lecture 1. Michael Fowler. Basic Outline. The course has three main parts, each about a month: . Electrostatics.. Magnetism and Magnetic Induction.. Electromagnetic Waves.. We’ll cover some other waves, and optical phenomena, in the last few lectures. We’ll also cover DC and AC circuits in the course.. Michael Fowler, UVa. Today’s Topics. Field lines and . equipotentials. Partial derivatives. Potential along a line from two charges. Electric breakdown of air. Potential Energies Just Add. Suppose you want to bring one charge . Michael Fowler, UVa. Today’s Topics. Continuous charge distributions: line of charge. Visualizing the field: lines of force. Electron moving in a field. Electric dipoles. Superposition. The . total electric force . Michael Fowler, . UVa. Today’s Topics. Multi-slit interference. The diffraction grating: spectra. Waves and particles, more diffraction. Radio astronomy. Light Intensity Pattern from Two Slits. We have two equal-strength rays, phase shifted by. My current research includes . Photonics, Optics, Electronics, Sensing, Nano- and microscale devices, Correlation between chemical, magnetic, electrical and optical . signals.. Condensed . matter . physics. Michael Fowler, . UVa. Today’s Topics. Review self and mutual induction. LR. Circuits. LC. Circuits. Definition of Self-Inductance. For any shape conductor, when the current changes there is an induced emf . Michael Fowler, . UVa. Today’s Topics. General form of Faraday’s Law. Self-Inductance. Mutual Inductance. Energy in a Magnetic Field. Faraday’s Law: General Form. A changing magnetic flux through a loop generates an emf around the loop which will drive a current. The emf can be written:. Learn how to excel in AP Physics with this comprehensive guide. Explore essential concepts, study strategies, and resources to ace your AP Physics exam.