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Why does a shadow of a fork 'dissappear' once submerged? [duplicate]
NO SHADOW of the fork!
A distinct black shadow can be observed at the bottom of a glass before and after the fork enters the water, but the shadow disappears at the instant of entry, is this a ...
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18
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Why are the edges of the shadow so bright?
Today I noticed something while playing with my specs (having diverging lenses).
Have a look at it :
This is the shadow of my specs on the wall in sunlight. The region of the lens appears darker and ...
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