Calculate Speed of Light in Diamond (n=2.42)

  • Thread starter Thread starter JimmyRay
  • Start date Start date
  • Tags Tags
    Refraction
AI Thread Summary
To calculate the speed of light in diamond with a refractive index of 2.42, use the formula v = c/n, where c is the speed of light in a vacuum (3.00 x 10^8 m/s) and n is the refractive index. This results in v = 3.00 x 10^8 m/s / 2.42, which equals approximately 1.24 x 10^8 m/s. The discussion highlights confusion around optics concepts, particularly the definition and application of the index of refraction. Understanding that the index of refraction relates the speed of light in a vacuum to its speed in a medium is crucial. Clarity on these principles can help resolve difficulties in the optics unit.
JimmyRay
Messages
89
Reaction score
0
Calculate the speed of light in

a) Diamond (n = 2.42)
use 3.00 x 10^8 m/s as the speed of light


...ok how do I do this?

Snell's law only let's me find anles or refractive indicies...
 
Physics news on Phys.org
What's the definition of index of refraction?
 
index of refraction is...

defined by c (speed of light) over v (speed of light in the medium) lol sorry... I can do this question... I don't know why I am having so much trouble with this optics unit...
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging 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

Refraction of light when traveling from air to glass
Replies
6
Views
1K
Finding the angle of refraction
Replies
11
Views
7K
What is the refraction index of liver?
Replies
5
Views
2K
B If light beam travels through a vacuum, then through diamond, then through more vacuum...
Replies
15
Views
2K
Applying Snell's Law Inside & Outside a Prism
Replies
2
Views
2K
How Long for a Beam of Light to Reach Earth?
Replies
21
Views
1K
The refractive index of an unknown liquid
Replies
1
Views
3K
Calculating Index of Refraction with Wavelength
Replies
1
Views
2K
Apparent depth of an object underwater
Replies
3
Views
2K
Geometric Optics: Snell's Law calculation problem
Replies
4
Views
4K

Hot Threads

Recent Insights

Back
Top