LIGHT Flashcards
1
Q
refraction
A
is the bending of light as it goes from one medium to another
2
Q
laws of refraction
A
Incident ray, refracted ray & normal are on the same plane. (2) Sine I/Sine R is constant.
3
Q
refractive index
A
Sine I/Sine R = 1/Sin C = Real depth/Apparent depth = c1/c2
4
Q
critical angle
A
the angle whose angle of incidence is 90 when light goes from a denser to a rarer medium
5
Q
total internal reflection
A
When light travelling from a denser to a rarer medium strikes the second medium with an angle of incidence greater than the critical angle, it is reflected back
