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jimmybagz
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Just finished my phy 2 midterm 3!- one problem I am iffy about
So first question I have is on a conceptual problem in our exam dealing with wavelength and frequency of light along with speed in water and Air
1. The frequency of light in water is____ that of air
2. The wavelength of light in water is____ that of air
3. The speed of light in water is ____ that of air
[tex]\lambda[/tex]matter=[tex]\lambda[/tex]vaccum/n
v=c/n
v=f*[tex]\lambda[/tex]
1. This is the one I put my best guess on...equal to
-I was not sure on this one very frustrating as I studied hard and just didnt remember this one
2. Pretty sure...Less than
-I used the formula relating n to [tex]\lambda[/tex] and since nwater>nair therefore the wavelength in water is less than wavelength in air...I also confirmed this since i remember a salesman at a scuba/snorkeling place trying to convince me that i should buy a red lensed mask because red light is as he said "absorbed by water" well seeing as red is higher in the visible spectrum if he wasn't just blowing smoke up my rear end then wavelength of light in water must be less than that of air
3. Easy peasy lemon squeezey... less than
-nwater>nair there for vwater<vair
Homework Statement
So first question I have is on a conceptual problem in our exam dealing with wavelength and frequency of light along with speed in water and Air
1. The frequency of light in water is____ that of air
2. The wavelength of light in water is____ that of air
3. The speed of light in water is ____ that of air
Homework Equations
[tex]\lambda[/tex]matter=[tex]\lambda[/tex]vaccum/n
v=c/n
v=f*[tex]\lambda[/tex]
The Attempt at a Solution
1. This is the one I put my best guess on...equal to
-I was not sure on this one very frustrating as I studied hard and just didnt remember this one
2. Pretty sure...Less than
-I used the formula relating n to [tex]\lambda[/tex] and since nwater>nair therefore the wavelength in water is less than wavelength in air...I also confirmed this since i remember a salesman at a scuba/snorkeling place trying to convince me that i should buy a red lensed mask because red light is as he said "absorbed by water" well seeing as red is higher in the visible spectrum if he wasn't just blowing smoke up my rear end then wavelength of light in water must be less than that of air
3. Easy peasy lemon squeezey... less than
-nwater>nair there for vwater<vair
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