Finding Refraction Angle and Wavelength in Water for Sodium Light?

AI Thread Summary
To find the refraction angle and wavelength of sodium light in water, the index of refraction for water (n=1.33) is used alongside Snell's Law. The wavelength of sodium light in air (λ₀=5893 Å) can be calculated for water using the formula λ=λ₀/n. This results in a wavelength of approximately 4431 Å in water. The initial confusion arose from the application of the equations, but the correct approach was clarified. The calculations confirm that the wavelength in water is accurately derived.
h20proof
Messages
5
Reaction score
0
A narrow beam of sodium light (λ=5893 A) is incident from air on a smooth surface water at θ=35°. Find the refraction angle and wavelength in water.

n=λ_0/λ:wavelength of light in a material
n_asinΘ_a=n_bsinΘ_b: snells law
n=c/v:index of refraction

I tried using the wavelength of light in a material to find n. I got confused because λ will equal each other. I am not sure if it is correct. Please help. Thanks
 
Physics news on Phys.org
You need to look up what n is for water, then apply the equation to find the wavelength in water.
 
n=λ_0/λ
λ=λ_0/n, water n=1.33, and λ_0=5893
λ=5893/1.33= 4431 A Is this correct?
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanged mass'

Thread 'A cylinder connected to a hanged mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Calculating Index of Refraction with Wavelength
Replies
1
Views
2K
Apparent depth of an object underwater
Replies
3
Views
2K
Film Thickness for Minimum Reflection of Monochromatic Light: How to Calculate?
Replies
12
Views
2K
Decay length of the evanescent wave
Replies
2
Views
4K
A When should I analyze optical problems using ray tracing vs. wavefront analysis?
Replies
12
Views
319
Indices of refraction when wavelengths are given
Replies
2
Views
2K
Should optical cables be water tight? Geometric optics
Replies
1
Views
1K
Coating Eyeglass Lenses(destructive interference)
Replies
1
Views
4K
Deviation in refraction and TIR
Replies
2
Views
2K
Radio waves in air and water - difference in path
Replies
1
Views
2K

Hot Threads

Recent Insights

Back
Top