ToughSTEM
Sign Up
Log In
ToughSTEM
A question answer community on a mission
to share Solutions for all STEM major Problems.
Cant find a problem on ToughSTEM?
0
A helium-neon laser beam has a wavelength in air of 633 nm. It takes 1.48ns for the light to travel through 29.0cm of an unknown liquid.
What is the wavelength of the laser beam in the liquid?
Express your answer with the appropriate units.
Edit
Added Fri, 24 Jul '15
Community
1
Comment
Add a Comment
Solutions
0
Velocity of light in unknown liquid = (0.29/(1.48*10^-9))

= 0.196*10^9 m/sec

As we know that Frequency remains same

and velocity = frequency*wavelegth

Therefore

Velocity/Wavelength = Constant

Therefore

(3*10^8)/(633) = (0.196*10^9)/lambda

lambda = 413.56 nm
Edit
Added Fri, 24 Jul '15
Community
1
Comment
Add a Comment
Add Your Solution!
Close

Click here to
Choose An Image
or
Get image from URL
GO
Close
Back
Add Image
Close
What URL would you like to link?
GO
α
β
γ
δ
ϵ
ε
η
ϑ
λ
μ
π
ρ
σ
τ
φ
ψ
ω
Γ
Δ
Θ
Λ
Π
Σ
Φ
Ω
Copied to Clipboard

Add Your Solution
Sign Up
to interact with the community. (That's part of how we ensure only good content gets on ToughSTEM)
OR
OR
ToughSTEM is completely free, and its staying that way. Students pay way too much already.
Almost done!
Please check your email to finish creating your account!
Welcome to the Club!
Choose a new Display Name
Only letters, numbers, spaces, dashes, and underscores, are allowed. Can not be blank.
Great! You're all set, .
A question answer community on a mission
to share Solutions for all STEM major Problems.
Why
The Purpose
How
The Community
Give Feedback
Tell us suggestions, ideas, and any bugs you find. Help make ToughSTEM even better.