1/14/2020 0 Comments
10 Most Beautiful Scientific Experiments - Essay Example The wave nature of light makes the light waves going through the 2 slits to interfere thereby producing bright and dark bands in the screen. Light is always absorbed at the screen at separate points as individual particles demonstrating the interference pattern by the use of particles of varying densities (The New York Times). This experiment can be performed in different versions including use of detectors at the slits where each detected photon passes through the slit but not through both slits thereby demonstrating the wave-particle duality principle. This experiment demonstrated that the light consists of waves. This could be seen by the way brightness is distributed, which can be explained by alternately subtractive and additive interference of wave-fronts. The experiment played a vital role in the acceptance of the wave theory of light. The oil drop experiment was used to measures the elementary charge of the electron. The gravitational force and buoyant forces were determined from the observed radii of oil drop. The experiment confirmed that the charge of oil droplets in mechanical equilibrium which is âˆ’1.5924 (17)Ã—10âˆ’19 C, in the range of one percent of the presently accepted value of âˆ’1.602176487(40)Ã—10âˆ’19 C (The New York Times). This was the charge of one
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