Calculate Red Light Wavelength in Liquid | Angle of Refraction

[rhxoehwhfh]

Red light travels from air into liquid at an angle of incidence of 390 and an angle of reflection of 170. Calculate the wavelength of the red light in the liquid if its wavelength in air is 750 nm

can you give me some hint for this one too?

 

[Shooting Star]

The frequency does not change. Is this hint good enough?

 

[bsimmo]

double post...

 

[Shooting Star]

Is it? I think the OP had posted another post with the title "another...", but the topic was different.

Dear rhxoehwhfh,

Please sacrifice originality for practicality and try to give your posts names dealing with the subject, for everybody's benefit.

 

[bsimmo]

I was going to add the link to the double but didn't know if I should do that..
https://www.physicsforums.com/showthread.php?t=205646

I guess it should be cross-post and not double post.