Light reflected at 556 degree from a window is completely, Ask an Expert

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Light reflected at 55.6 degree from a window is completely polarized.

Medium	n	Medium	n
*Gasses at 0°C, I atm*		*Solids at 20^oc*
Air	1.000293	Diamond	2.419
Carbon dioxide	1.00045	Fluorite	1.434
Hydrogen	1.000139	Glass, crown	1.52
Oxygen	1.000271	Glass, flint	1.66
Liquids at 20°C		Ice at 0^°C	1.309
Benzene	1.501	Polystyrene	1.49
Carbon disulfide	1.628	Sodium chloride	1.544
Carbon tetrachloride	1.461	Quartz, crystalline	1.544
Ethanol	1.361	Quartz, fused	1.458
Water, fresh	1.333	Zircon	1.923
Glycerine	1.473

Part (a) What is the window's index of refraction?

Part (b) From what substance is the window likely made?

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