PHYS 1010Q Lecture Notes - Lecture 31: Electromagnetic Spectrum, Hertz
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Light can be separated into its different colors by a glass prism. the blue light is bent more than the red light. Visible light is a small range of the full em spectrum. About 360 (violet) to 750 (red) nm wavelength. [1 nm = (note: prefix t tera = . 1012 m: 638 thz, 157 thz, 157 fhz, 470 hz. The emission spectra of helium and hydrogen atoms. The absorption spectrum shows us how much light is absorbed at each particular frequency. The graph shows an absorption spectrum. dips occur at those frequencies where the atoms absorb light. the frequency of the emission and absorption lines can not be explained by newtonian models. Figuring out how to calculate the black body radiation spectrum was an important achievement which led to quantum mechanics. The colour of emitted light changes with. The amount of emitted light depends upon temperature. Just a wave, sometimes it is a particle.