Main page Course information   Overview   Grading policy   Course registration   CHEATING POLICY   Seeking help   Discussion sections Weekly work   Schedule   WebAssign   Chapter problems Exam and grade info   Exam, homework solutions   Sample PHY2049 exams Other links   References   Physics Department   Other physics courses   Dilbert home page	The links listed here provide additional insight and give you a chance to play with virtual experiments in the form of applets. General FSU applets: The Florida State Microscopy site has a number of good applets having to do with optics, interference and diffraction. Fu-Kwu Hwang applets: There are a whole bunch of nice applets here on a variety of topics in mechanics, E&M and wave phenomena. Chap. 21-24 Electric field: Simple applet showing the field from two charges. You can turn the strength of one charge up or down. Electric field: This is a more advanced applet showing the electric field from a number of charges. This site allows a lot of controls to be used. 2-D electrostatic simulation: 3-D electrostatic simulation: You can also rotate the picture around to get an idea of what the field lines look like. Chap. 25 RC time simulation: Applet demonstrating how an RC circuit charges, where the voltage across the capacitor and resistor vary with time. You can change the value of R, C and V. Chap. 26-27 Circuit building simulation: This applet allows you to build complex circuits from a variety of components. You can also "play" circuits and plot interesting quantities such as voltage, current, etc. Chap. 28-31 3-D B field simulation: Charged particle motion: This applet shows the motion of a charged particle in a combination electric and magnetic field. You can change the values of the fields to make the particle suffer no deflection. RLC crcuit simulation: This simulation shows the applied voltage and the voltage drop across R, L and C. Put in the resonant frequency and explain what happens. Chap. 32   Chap. 33 E&M wave propagation: Applet shows the E and B fields of a wave generated by an oscillating charge. Wave propagation: This is a simple applet showing how individual particles move during transverse or longituninal wave propagation. Wave superposition: Applet showing superposition of two colliding sinusoidal waves. Wave superposition: Applet showing superposition of two colliding pulses. You can switch the sign of the amplitude. Why is light a wave?: Good discussion about why we believe that light is a wave. 3-D wave: Interesting effects. You can modify the wavelength and orientation of the wave. Doppler effect: This applet shows how the frequency shift from a moving source differs between light emission (relativistic) and sound emission (non-relativistic). Polarization: Applet from the FSU site Polarization: Discussion about polarization. Snell's law: Applet showing reflection and refraction. Snell's law: Another applet Snell's law applet, emphasizing wavelength differences in the two media. Refraction discussion: This discussion has a lot of nice pictures about refraction and several applets. Chap. 34 Concave mirror and convex mirror: Applets from FSU microscopy site Positive thin lens: Negative thin lens: Mirror and lens applet: This applet allows you to control a the focal length, object position and object size. For the mirror case, you can also see the effect of rays that are not paraxial. Thick lens: This shows the behavior of a thick lens when each surface is made spherical (spherical aberration). Real lenses actually have more complex shapes to make the rays converge better. Cameras, etc.: Detailed discussion about cameras, film, projectors, etc. SLR photography: Lots of stuff on cameras and photography. Hubble space telescope: This site has lots of information and pictures from Hubble. Chap. 35-36 Two Wave interference: Two source interference: Ripple tank: Demonstrates interference with multiple sources. You have to be careful to set parameters when adding each source. Ripple tank: More advanced appplet showing interference. You can move the sources and do some other complex things. Two slit simulation: Static applet that allows you to change the wavelength and slit separation and see what happens. Two slit simulation: Dynamic applet that allows you to change the slit separation and the wavelength. Single slit simulation: This simple applet allows you to change the slit width and wavelength, but only in narrow regions. N-slit simulation: This is a great applet, allowing you to create single, double, or multiple slit situations.