Consider a wavelength with a frequency of 7.5 x 10 to the 14th Hz. a. What is the wavelength of the wave, in nanometers?
b. What is speed of this wave in a vacuum?
2006-10-02 13:56:58 · 3 answers · asked by kittyvamptress 2 in Science & Mathematics ➔ Chemistry
yes it is a light wave
2006-10-02 14:19:27 · update #1
c=3*10^8 m/s=3*10^17 nm/s
3*10^17/7.5*10^14=400 nm
Like any other electromagnetic wave, it travels at the speed of light, 3*10^8 m/.s
2006-10-07 09:43:15 · answer #1 · answered by yupchagee 7 · 16⤊ 0⤋
c = wavelength x frequency
c/frequency = wavelength
c = speed of light 3.0 x 10^8 m/s speed of the wave
(3.0 x 10^8 m/s) / (7.5 x 10 ^14 Hz) = this will be in meters
use 1m = 10^9 nm to convert to nanometers.
2006-10-02 14:02:01 · answer #2 · answered by dougal c 2 · 0⤊ 0⤋
Your question cannot be answered without further information. Frequency (f), wavelength (l), and speed (v) are related in the following way:
f*l = v
So you need to know 2 of the quanities involved in order to solve for the third one. Do you have any more information? Do they say if it is a light wave?
2006-10-02 14:03:40 · answer #3 · answered by Jeff Scheidt 2 · 0⤊ 0⤋