Optical activity, Photo 4 of 4

Optical activity, Photo 4 of 4

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Caption: Optical activity, Photo 4 of 4. Optical activity of sugar is demonstrated by placing a beaker with corn syrup on top of an iPad. Its LCD screen acts a source of linearly-polarized white light. An analyser (linear polarizer) is placed on top of the beaker. Chiral molecules (eg sugar) cause rotation of the plane of the linearly polarized light when it passes through the sample. The angle of rotation is wavelength-dependent. Hence, when the analyser is rotated, the light that passes through the sample acquires a colour tint. Photo 4 of 4.

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Keywords: activity, beaker, chemistry, chiral, colour, corn syrup, crossed, demonstration, education, educational, effect, light, optical, optics, phenomenon, physics, polarization, polarizer, polarizing, rotation, science, scientific, sequence, series, solution, still life, sugar, tint

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