Physics halp! (1 Viewer)

hscishard

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Soo..confusing.
If the wavelengths increase, why doesn't the velocity increase? They all travel at the same speed in Vacuum.

Physics is so fucked atm
 
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Soo..confusing.
If the wavelengths increase, why doesn't the velocity increase? They all travel at the same speed in Vacuum.

Physics is so fucked atm
In a vacuum, the frequencies and wavelengths of every single type of EMR is like perfect and when multiplied they equal 3x108.

But... when the EMR goes through a medium, it changes. Frequency remains constant, but wavelength changes.

Like in my hypothetical world where the speed of light in a vacuum is 6 m/s...

2 * 3 = 6
3 * 2 = 6

But... when you modify wavelength and keep frequency constant...

2 * (3 - 1) = 4
3 * (2 - 1) = 3

Kablamo! The speeds of the EMR changes!
 

hscishard

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In a vacuum, the frequencies and wavelengths of every single type of EMR is like perfect and when multiplied they equal 3x108.
Umm yea..lucky its your world :p

I get it now, frequency is fixed, but fixed for that wave only.
Damn. Explains why the higher frequency, the lower wavelength.
 
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Mathematically, yellow has a lower wavelength therefore greater velocity.

But for faster velocities, they bend further away from the normal. <---citation needed
I don't think so, I used the wavelengths of both colours from Wikipedia and found:

Wavelength of yellow light in glass slab = 3.53 x 10-7 m

Wavelength of green light in glass slab = 3.34 x 10-7m

So green has the lower wavelength.
 

xV1P3R

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But for faster velocities, they bend further away from the normal. <---citation needed
I think this is right
If you think about it, light travels faster in air than in glass (you can probably research this somewhere), and in the question you have light bending closer to the normal as it slows down.
 

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