What is the wavelength of energy and a quantum of laser light?
What is the energy (J) and wavelength (Nm) associated with one quantum of laser light has a frequency of 4.57 * 10 ^ 14 s ^ -1?
To find the wavelength, we divide the speed of light is 2.998 times 10-8 meters per second frequency, which is given as 4.57 times 10 to 14 cycles per second, giving a ratio of 6.56 * 10 **- 7 meters or 656 nanometers (red light). Energy quantum is found by multiplying the frequency of Planck's constant, which is 6.625 * 10 **- 34 Joule-seconds, then gives: **- 6625 * 10 * 10 4.57 34 times ** 14, which is 3.0276 * 10 **- 19 joules, or 0 30 276 attojoule (A very small amount of energy).
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