![]() The mission of the Physics and Astronomy department is to provide science and engineering students at UTSA with a solid background in physics, problem-solving skills, and equip students with invaluable research experience. We invite you to look us over and consider the study of physics at UTSA. We also aim to provide students with as much research experience as possible, to better prepare them for their future careers. We strive to provide UTSA science and engineering students with a solid background in physics and problem-solving skills, critical to their future work, regardless of the nature of that work. We also offer courses in the exciting areas of astrophysics, cosmology, and relativity for those interested in that frontier. Students may choose to train in semiconductor technology, solid-state physics, computer visualization, lasers, biophotonics, and theoretical physics. Our faculty members conduct research in a variety of areas including Astrophysics and Cosmology Biophysics Computational Physics Experimental and Theoretical Condensed Matter Physics Materials Science and Nanotechnology and Ultramicroscopy. Likewise, if a photo were taken in the ultraviolet we expect the radius of the rainbow to be less than the radius of the rainbow in the visible-light picture.The Department of Physics and Astronomy at The University of Texas at San Antonio is a comprehensive academic unit that offers Bachelor of Arts, Bachelor of Science, Master of Science, and Doctoral degrees. Because infrared light has a longer wavelength than red light, we expect its radius to be outside the radius of the red portion of the rainbow. That makes the outer radius of a rainbow red and the inner radius violet. ![]() The speed and the wavelength each change, but not the frequency.Īs seen in Figure 26-52 (above), long-wavelength red light has a smaller index of refraction (higher wave speed) than violet light, and red light emerges from the rain drop at larger angle than violet light. The wave frequency always remains the same when it crossesĪ boundary. Partly explains why concrete walls are great sound insulators, because very little sound So efficiently - nearly every angle of incidence results in sound reflection. This low angle explains why concrete reflects sound That means the displacementĬurrent must point into the page, hence the rate of change of the electric flux must point into the page,Īnd the out-of-the-page electric field must be decreasing. Using the right hand rule, aĬlockwise magnetic field is produced by a current that points into the page. Plays the role of current for the production of the magnetic field. The rate of change of electric flux, or the displacement current, The rainbow's radius in the infrared picture is _ than its radius in the visible-light picture. You take a picture of a rainbow with an infrared camera, and your friend takes a picture at the same time with visible light. When a beam of light ( λ = 590 nm), originally traveling in air, enters a piece of glass Find the critical angle for total internal reflection of sound at the concrete-air boundary. Our faculty members conduct research in a variety of areas including Astrophysics and Cosmology Biophysics Computational Physics. The speed of sound in the concrete walls is 1850 The Department of Physics and Astronomy at The University of Texas at San Antonio is a comprehensive academic unit that offers Bachelor of Arts, Bachelor of Science, Master of Science, and Doctoral degrees. ![]() The electric field strength (the red dots indicate E is out of the page) in the figure is _.Ī room contains air in which the speed of sound is 343 m/s. Other effects that result from slight dispersion in ice. This picture was taken in Alaska, and shows some color in the sun dogs and These are the ice crystals responsible for some of the effects you see in This picture was taken at the south pole, and includes a great number of interesting optical effectsĬreated by pencil-shaped and plate-shaped ice crystals. Green flash only rarely seen at sunset is caused by aĬompetition between dispersive refraction and scattering Read textbook sections 34-1 and 34-2 before the next lecture
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