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Optical activity
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Optical activity
Optical activity. Image 1 of 2. Optical activity of fructose demonstrated by using polarized light. Optically active compounds rotate light waves that pass through them. This can only be seen under polarized light, light that vibrates in one direction only and is produced by using a polarizing filter. Polarized light passes through the fructose, and then through another polarizing filter. The second filter shows fructoses optical activity strengthening one of the colours of the light. The colour depends on the relative angles of the filters (here 75 degrees). Different angles produce different colours, as seen in A350/126-7
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Media ID 6274313
© ANDREW LAMBERT PHOTOGRAPHY/SCIENCE PHOTO LIBRARY
Angle Apparatus Colour Demonstrating Demonstration Effects Experiment Experimental Filter Filters Liquid Organic Physical Effect Polarization Polarized Light Properties Property Sugar Laboratory
EDITORS COMMENTS
This print showcases the phenomenon of optical activity, specifically in fructose. Optical activity refers to the ability of certain compounds to rotate light waves that pass through them. However, this rotation can only be observed under polarized light, which vibrates in a single direction and is achieved using a polarizing filter. In this image, we witness the demonstration of fructose's optical activity using two polarizing filters. The first filter allows polarized light to pass through the fructose solution, while the second filter reveals how fructose strengthens one particular color of light. The specific color displayed depends on the relative angles between these filters - here set at 75 degrees. The experiment highlights an intriguing property of organic compounds like fructose and provides valuable insight into their chemical makeup. It serves as a testament to the power of scientific exploration and experimentation within laboratory settings. Through its vibrant colors and intricate apparatus, this photograph captures both the beauty and complexity inherent in studying physical effects such as polarization and optical activity. It reminds us of how science constantly unravels nature's secrets by unveiling hidden properties that may go unnoticed by our naked eyes alone.
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