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Why do shperes and hemispheres are formed when we capture a flash light of mobile.?

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Why do 2x hemispheres and a  sphere is formed in air when a flash light(white colour commonly used in mobiles) is being captured through a mobile phone.? why do a white spot form in 1st hemisphere.? why do that white spot falls exactly on the boundaries of 2nd hemisphere.? Why do a small interlink  comes between 1st and 2nd hemisphere.? Why do they differ in colour intensity and length of hemispheres is changed when the device of capturing is changed.?
asked Aug 8, 2014 in General by anudeep-konjerla (120 points)

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If you surely want to know the fact then you should go through the behavior of light chapter in science books. It's because light shows dual nature that is Ray and wave. What you noticed was because of its wave nature. It's basically called wavefront.
Intensity changes due to interference and diffraction.
answered Sep 12, 2017 by giginailo (2,580 points)

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