Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
f=c/wavelength. Please help, not sure how to calculate f. c= 3.00 x 10^8 m/s wavelength = 268nm
 11 months ago
 11 months ago
f=c/wavelength. Please help, not sure how to calculate f. c= 3.00 x 10^8 m/s wavelength = 268nm
 11 months ago
 11 months ago

This Question is Open

kausarsalleyBest ResponseYou've already chosen the best response.0
plug in the values you have in the formula..
 11 months ago

boomerang285Best ResponseYou've already chosen the best response.0
but i get a giant number, and not sure what I do after that.. i need to figure out f=____hz
 11 months ago

boomerang285Best ResponseYou've already chosen the best response.0
f=3.00x(10^8)/268nm
 11 months ago

boomerang285Best ResponseYou've already chosen the best response.0
I feel like I am missing a step or something.
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
you did not concert the wavelength which is on nanometers into meters..
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
can you do that or should i help with that??
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
no..... nano = 1* 10^9
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
does that help??
 11 months ago

boomerang285Best ResponseYou've already chosen the best response.0
im a little confused.
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
@boomerang285 are you there?
 11 months ago

boomerang285Best ResponseYou've already chosen the best response.0
I really don't understand this.
 11 months ago

boomerang285Best ResponseYou've already chosen the best response.0
I don't get how to plug in the numbers, when I have to change them as well. 268 nm changes to meters right? is it not 268nm= 2.68 x 10^7m?
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
to convert the wavelength from nanometers to meters you need to multiply by 10^9
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
nano in its number state is 10^9.....so nm=10^9m
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
no since nano is 10^9, it is supposed to be 2.68 x 10^9m
 11 months ago

boomerang285Best ResponseYou've already chosen the best response.0
oh ok.... makes sense, so then the equation (f=c/wavelength) has those values in it?
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
yes....so what do you get after you plug in the numbers??
 11 months ago

boomerang285Best ResponseYou've already chosen the best response.0
this is the tricky part for me.. I dont know how to correctly work it out
 11 months ago

boomerang285Best ResponseYou've already chosen the best response.0
it looks like this though right? 3.00 x 10^8 / 2.68 x 10^9
 11 months ago

boomerang285Best ResponseYou've already chosen the best response.0
80.4? probably way off...
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
input what you have on your calculator...
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
that is not what i got..
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
http://www.wolframalpha.com/input/?i=%283+x+10%5E8%29%2F%282.68+x+10%5E9%29
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
does that help??
 11 months ago

boomerang285Best ResponseYou've already chosen the best response.0
yes, i just didnt have the negative for the 10^8
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
oh okay...you have to be careful next time.
 11 months ago

kausarsalleyBest ResponseYou've already chosen the best response.0
do you get it now??
 11 months ago

boomerang285Best ResponseYou've already chosen the best response.0
yes, so obviously I don't put in all the numbers.. so f = 11.15?
 11 months ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.