Waves Flashcards
1
Q
Snell’s law
A
n1sin(@1) = n2sin(@2)
2
Q
n1sin(@1) = n2sin(@2) is what law?
A
Snell’s law
3
Q
Which way do rays of light refract in respect to the normal when:
> Lower -> ^ n
> ^ -> lower n
A
> towards the normal
away from the normal (allows for total internal reflection sometimes)
4
Q
What is the critical angle? (Def & eq)
A
if angle r = 90 (^ -> v n)
angle i = critical angle
Eq: sinC = n2 / n1
5
Q
What condition allows for total internal reflection?
What happens to the angles? {double check}
A
•angle i > critical angle
•angle i = angle r (IS ANGLE I i2 now???)
