At the polarizing angle one beam only is capable of being thus reflected. [Please select]
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] [Footnote 4: It will be subsequently shown how this simple apparatus may be employed to determine the 'polarizing angle' of a liquid. [Please select]
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] [Footnote 17: This beautiful law is usually thus expressed: _The index of refraction of any substance is the tangent of its polarizing angle_. [Please select]
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The polarizing angle of the liquid may be thus found with the sharpest precision. [Please select]
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** How to Make a a Non-Polarizing Battery [151] Bichromate batteries are very expensive to maintain and dry cells do not furnish enough amperage for some kinds of experimental work. [Please select]
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A plate of selenite placed between the Nicol and the actinic cloud shows the colours of polarized light; in fact, the cloud itself plays the part of a polarizing Nicol. [Please select]
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