Laser Light
Posted June 10, 2009
By admin
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From GROUPON in Los Angeles
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Five- or Nine-Hour Fishing Trip with Meal from Dana Wharf Sportfishing in Dana Point (Up to 51% Off)
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What is the energy and wavelength of one quantum of laser light?
What is the energy(J) and wavelength(nm) associated with one quantum of laser light that has a frequency of 4.57 * 10^14 s^-1?
To find the wavelength, we divide the speed of light which is 2.998
times 10 to the 8 meters per second by the frequency, which is given
as 4.57 times 10 to the 14 cycles per second, giving a quotient of
6.56 * 10**-7 meters, or 656 nanometers (red light).
The energy per quantum is found by multiplying the frequency by
Planck’s constant, which is 6.625 * 10**-34 joule-second, so we get:
6.625 * 10**-34 times 4.57 * 10**14 which is 3.0276 * 10**-19 joule,
or 0.30276 attojoule (a very small amount of energy).
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Barska Red Laser w/ Built-in Mount and Rail $0 Using newly developed high impact rated 5 mW compact laser diodes Barska has developed this laser which emits a highly visible red laser beam that produces red 635 nm wavelength light which is highly visible to the human eye. |
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Aimpoint Micro T-1 4 MOA Laser Sight $592.99 This Aimpoint Micro T-1 is a lightweight red dot sights that is small enough to be used anywhere that you could put iron sights. This laser sight is tough and safe. |
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Burris Fastfire II Red Dot Reflex Sight $193.1 This Burris Fastfire II Red Dot Reflex Sight features a target-directed light sensor that automatically adjusts the 4 MOA red dot for maximum visibility. This sight’s aiming system which affords unlimited eye relief and shooting with both eyes open. |