Two flat plates of glass each 800 cm long are in contact at, Ask an Expert

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Two flat plates of glass, each 8.00 cm long, are in contact at one end and are separated by a piece of paper at the other end, as shown in the figure below. This creates a thin air wedge of variable thickness between the plates. The thickness of the paper is h = 63.5 μm.

872_Two flat plates of glass.gif

What is the thickness t of the air film at a point that is a distance x = 5.70 cm from the end where the plates are in contact?

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