PDA

View Full Version : Quantum Theory makes me go crazy


President Mercury
Sep19-06, 01:56 PM
I am in a General Chemistry class but we are on the chapter: Quantum Theory and Electronic Structure of Atoms. I do not understand my teacher and want some kind of real human being to explain to me how to find an answer to the question I'm going to give. Please do not think that I'm cheating on homework or anything, I want to know how and why the answer is what it is not just a quick answer.

Here is the question: What is the wavelength (in nanometers) of light having a frequency of 8.6 x 10^13 Hz? What is the frequency (in Hz) of light having a wavelength of 566nm?

Thanks to anyone who can help (or give me a joke to laugh at) :smile:

Doc Al
Sep19-06, 02:00 PM
How do speed, wavelength, and frequency relate for any wave? (Hint: Consider the units of each.) What's the speed of light?

chroot
Sep19-06, 02:01 PM
Do you know the equation which relates the frequency and wavelength of a wave through its velocity of propagation?

\nu \lambda = c

- Warren

gongchangjie
Sep20-06, 02:34 AM
the answer above is right

fujiwara_sai
Sep20-06, 02:52 AM
maybe the threadstarter wanna know why is the equation \nu \lambda = c ?

HallsofIvy
Sep20-06, 04:46 AM
maybe the threadstarter wanna know why is the equation \nu \lambda = c ?
I believe that was Doc Al's point.

Hurkyl
Sep20-06, 05:42 AM
So, a priest, mininster, and a rabbi may have walked into a bar...

President Mercury
Sep20-06, 02:32 PM
I understand what Doc Al and Chroot are both getting at. So after using the equation that was given by Chroot I should convert the answer into nanometers?

Doc Al
Sep20-06, 02:47 PM
If they want the wavelength in nanometers, give them nanometers!

1 nm = 10^{-9} m

President Mercury
Sep20-06, 03:11 PM
So, a priest, mininster, and a rabbi may have walked into a bar...

Ha! They MAY have walked into a bar? Did they or didn't they?

President Mercury
Sep20-06, 03:13 PM
If they want the wavelength in nanometers, give them nanometers!

1 nm = 10^{-9} m

Thank you! I shall give them nanometers!

...nanometers that destroy:devil:

No but seriously thank you o:)