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Homework Statement This problem pertains to the drinking straw trick. You decide to place your finger over a 20.0cm straw. 95.0% of the straw is filled with water, while the top is full of air. Treating the straw as an ideal gas, compute fraction of the straw that is filled with water when the...

Homework Statement A thin film of glass is in flush contact with a thin film of transparent plastic that has a higher index of refraction than the glass. Monochromatic light of a certain frequency is shown on both sides of this combination, and there is very little light reflected from either...

Hi, thanks! Woops, sorry I forgot to include the thickness. The thickness is 1.1x10^-5 m. And you make a good point that the coating might not have lambda/(4n) thickness, but the problem doesn't say how thick the layer is. It only says the minimum thickness so I assume that it is greater than...

Homework Statement Monochromatic laser light is shown through a double-slit apparatus with a slit separation of onto a screen, but no interference pattern is seen because the thin transparent coating (index of refraction n=1.35) on the screen is creating a thin-film destructive interference...