PHY 2054 Lecture Notes - Lecture 17: Diffraction
Document Summary
Light waves slow down as they through transparent materials such as water, glass, or air. This is due to the interactions between the electromagnetic field of the wave and the electrons in the material. 2. 42 the frequency of a wave does not change as the wave moves from one medium to another. The wavelength in the transparent material is ________ than the wavelength in a vacuum shorter. Because light acts as a wave, light wave can overlap and ______ constructively and destructively? interfere. We use very small slits to create _____ that can interfere with each other. When the light wave passes through the slit, it _______, a sure sign of waviness. waves; diffracts. In order to observe interference, we need ___ light sources whose waves can overlap and interfere. In an experiment by thomas young, light is shown thru a pair of slits, a double slit. Light passing through the slits ______ on a viewing screen. impinges.
without too much error.
