How Does Refractive Index Relate to Trigonometric Identities?

[Mattofix]

http://aycu12.webshots.com/image/44931/2004851894362651280_rs.jpgany idea what then?

 

[Mattofix]

please help...

 

[vincebs]

Try to think of a relationship between theta and phi that will get rid of one of the variables.

Then, what do you think happens when a function is at a maximum? (think calculus)

 

[Mattofix]

sin theta = n sin phi ?

the differential equals 0?

 

[vincebs]

Yeah

so differentiate.

 

[Mattofix]

i already tried that - i will scan in what i did

 

[Mattofix]

http://aycu26.webshots.com/image/43825/2004925194611774022_rs.jpg

 

[Mattofix]

but how do you differentiate that - i tried but came up with an absolute mess!

 

[vincebs]

Hmm, maybe try using trig identities?

double angle formulas?