calculate the frequency of a radiation with a wavelength 455nm.
arg i know how to do it, its the units that throw me off.
please help!
2006-11-15 14:22:07 · 3 answers · asked by Stephanie 3 in Science & Mathematics ➔ Chemistry
solve please
2006-11-15 14:33:38 · update #1
455 nanometers is 0.455 micrometers, 0.000455 milimeters, and 0.000000455 meters. Is that enough for you to get started, or would you like me to solve it for you...?
16 NOV 06, 0336 hrs, GMT.
2006-11-15 14:32:09 · answer #1 · answered by cdf-rom 7 · 0⤊ 0⤋
The solution goes like this:
frequency (Hz) = speed of light (m/s) / wavelength (m)
Now Wavelength is 455 nm or 455 x 10^-9 meters
Speed of light is 3x10^8 m/s
so f= 3x10^8 / 455 x 10^-9 = 6.59340 x 10^14 Hz or 659340.65934 GHz
Got it?
2006-11-16 09:45:05 · answer #2 · answered by chemist 2 · 0⤊ 0⤋
The units on frequency are 1/s (or inverse seconds) which is also called a Hertz (Hz). You get there because
frequency = c/wavelength = m/s / m = 1/s
2006-11-15 22:32:12 · answer #3 · answered by Lee Day 2 · 1⤊ 0⤋