A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
If a beam of light from a HeNe laser has wavelength 543 nm in air, what is its wavelength in water? The index of refraction for water is 1.33.
722 nm , 408 nm , 540 nm , or 360 nm ?
anonymous
 one year ago
If a beam of light from a HeNe laser has wavelength 543 nm in air, what is its wavelength in water? The index of refraction for water is 1.33. 722 nm , 408 nm , 540 nm , or 360 nm ?

This Question is Closed

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1the light speed v in water is: \[v = \frac{c}{n}\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1n is the refractive index of water

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok! what can we plug in? :/

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1we can write this: \[{\lambda _2}\nu = \frac{{{\lambda _1}\nu }}{n}\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1since the frequency is the same inside those two mediums, then we have: \[\Large {\lambda _2} = \frac{{{\lambda _1}}}{n}\] where \lambda_1=543 nm, and \lambda_2 is the requested wavelength

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay! so we plug in 543/n? what is n?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so we get 408? 408 nm is our solution?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1\[\Large {\lambda _2} = \frac{{{\lambda _1}}}{n} = \frac{{543}}{{1.33}} = ...\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1yes! That's right!
Ask your own question
Sign UpFind more explanations on OpenStudy
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.