CH111 Lecture Notes - Lecture 3: Valence Electron, Energy, Qit Madagascar Minerals
25 Dec 2018
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Describe electromagnetic radiation: exhibits wavelike behavior, consists of oscillating (periodically varying) magnetic and electric fields, oscillations to direction of travel. How do you calculate the speed of light? c = v. = wavelength distance from one crest to crest or one trough to trough. Units = meters; nanometers v = frequency number of waves that pass a given point per second. Units = s-1; waves per second (which is one hz) However, the speed of light is a constant, equaling 3. 00x108 meters/second. We set c to this value to calculate either or v. Because c is a constant, when v increases, must decrease and vice versa. Time between crests for wave sampled over time at one point in space. Matter particles, has mass, can be defined in space. Em waves does not have mass, cannot be defined in space. He measured energy vs. wavelength profile at different temperatures.
