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(Solved): A Very Thin Glass Slide Is Being Lifted Out Of Water Into Air By A Thin Wire. The Contact Angle Of W...
A very thin glass slide is being lifted out of water into air by a thin wire. The contact angle of water on the surface of the glass slide to air is 20°. Assume that the glass slide is 1 cm by 1 cm. What is the surface tension force that need to be overcome to lift the slide? Air-water interfacial tension is 72 mN/m at 25°C.
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Given refractive index of water n_w = 1.33 Whenunpolarizedlight is incident at this angle, the light that is reflected from the surface is therefore perfectly
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