![]() ![]() ![]() Take a ten question quiz about this page. Diffraction: Waves & Light Science Activity Exploratorium Teacher Institute Project Diffraction Light can bend around edges. If it has a lower amplitude, this is called destructive interference. If the resulting wave has a higher amplitude than the interfering waves, this is constructive interference. When the waves meet the resulting wave will have the amplitude of the sum of the two interfering waves.ĭepending on the phase of the waves the interference can be constructive or destructive. When one wave comes into contact with another wave this is called interference. As a result the white stripe will be less hot. A white stripe painted on the pavement will reflect more of the light and absorb less. The black pavement becomes hot from absorbing the light waves and little of the light is reflected making the pavement appear black. One example of absorption is black pavement which absorbs energy from light. What I mean is each light wave emerging from the slit was 1.1 wavelengths shifted compared to the previous ( just as in the constructive point you had each light wave being 1 wavelength shifted compared to the other) and therefore, over a large number of light waves from the many slits, we had each wave cancelling out with the other. This vibration absorbs or takes some of the energy away from the wave and less of the energy is reflected. In this picture the unpolarized light wave travels through the filter and then is polarized along a single plane.Ībsorption is when a wave comes into contact with a medium and causes the medium's molecules to vibrate and move. Diffraction of Waves Physics - YouTube 0:00 / 3:40 Form 4 Physics KSSM Chapter 5 - Waves Diffraction of Waves Physics myhometuition 49.1K subscribers Subscribe 472 37K views 6 years ago. Longitudinal waves, such as sound, cannot be polarized because they always travel in the same direction of the wave. Light waves are often polarized using a polarizing filter. ![]() Polarization is when a wave oscillates in one particular direction. ![]()
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