Suppose you have a sample of sucrose that appears to rotate plane polarised light 90 degrees dextrorotatory. How would you know for sure that the solution is not rotating the plane polarised light by 270 degrees levorotary?
2006-11-10 20:30:13 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Change the concentration slightly, and measure again. You will see where a slightly lower concentration will rotate the light, and thereby be able to say whether it's 90° dextro- or 270° levorotary.
2006-11-10 21:40:25 · answer #1 · answered by jorganos 6 · 0⤊ 0⤋
Even rotating by 90 degrees is a HUGE amount. No solution rotates by this much, let alone 270 degrees.
2006-11-10 20:37:46 · answer #2 · answered by Gervald F 7 · 0⤊ 0⤋
LASERS Light Amplified Stimulation Emission Radiation. Lasers / diodes emit polarized light. each of the same wavelength and thus travels in straight lines, only their application is limited to lab use and small applications. That due to atmospherics, both the crap in the air causing the beams to bend and to dissipate heat along its path. Red Lasers are common, the new blue lasers are a shorter wavelength and that makes for more data to be squashed into these new Cd-Roms, something like 40Gigz now. In eye surgery the use of laser diodes can pinpoint a single vein without damaging the surrounding arias, though this application uses pulsed lasers to control the exposure and heat transfer problems. Polarized lenses prevent or limit light to make contact with the eye by polarizing and only allowing vision of those filtered light-waves, ouch! Though light don't travel in waves, it once where believed so.
2016-05-22 04:48:19 · answer #3 · answered by Deborah 4 · 0⤊ 0⤋
Random guess but shine the light through less of the solution and see which way it goes?
2006-11-10 21:35:24 · answer #4 · answered by Thesmileyman 6 · 1⤊ 0⤋