tried once and got it wrong . have one more submission. hod do i solve this problem?
Calculate the wavelength, in nanometers, associated with an electron traveling 90.0% of the speed of light.
nm
2007-01-11 10:12:50 · 1 answers · asked by uldisjj 1 in Science & Mathematics ➔ Chemistry
The velocity of light in a vacuum is 299,792,458 meters per second. Ninety percent of this is about 269,813,000 meters per second.
The wavelength could be calculated by
λc = h / mc where h = Plank's constant, m = rest mass of an electron and c is the velocity of light (or in this case the velocity of the electron).
λc is known as the Compton wavelength and is normally (at velocity of light) = 2.426310215 × 10^-12 meters. For a slower electron (90% of C) the electron would have less energy and a longer wavelength. Divide 2.426310215 × 10^-12 meter by 0.90 to get the wavelength in meters. Convert this to nanometers for your answer.
2007-01-14 06:31:18 · answer #1 · answered by Richard 7 · 18⤊ 0⤋