Register to reply

Does the incidence angle and refraction angle have to add up to 90

by applestrudle
Tags: angle, incidence, refraction
Share this thread:
applestrudle
#1
Jan26-14, 11:50 AM
P: 49
does the incidence angle and refraction angle have to add up to 90

I'm trying to figure out the geometry of thin film refraction!
Phys.Org News Partner Physics news on Phys.org
'Comb on a chip' powers new atomic clock design
Quantum leap in lasers brightens future for quantum computing
Enhanced NIST instrument enables high-speed chemical imaging of tissues
nasu
#2
Jan26-14, 11:59 AM
P: 1,970
Not in general. They don't have to.
They do add up to 90 degrees when the angle of incidence is the Brewster angle and the reflected light is fully polarized.
sophiecentaur
#3
Jan26-14, 04:39 PM
Sci Advisor
PF Gold
sophiecentaur's Avatar
P: 11,873
Quote Quote by applestrudle View Post
does the incidence angle and refraction angle have to add up to 90

I'm trying to figure out the geometry of thin film refraction!
Where did you read anything to that effect? Snells law doesn't lead to that general conclusion, does it? Are you referring to a certain, special situation?


Register to reply

Related Discussions
Finding the incidence angle for refraction Introductory Physics Homework 3
Angle of incidence, angle of refraction and angle of reflection Introductory Physics Homework 1
Can the angle of refraction be equal to the angle of incidence? Introductory Physics Homework 2
Angle of incidence, reflection, and refraction Introductory Physics Homework 1
Incidence, Refraction, Critical Angle... Introductory Physics Homework 7