reflection
What is the law of reflection?
The angle of incidence equals the angle of reflection.
What happens to light when it enters water from air at an angle?
It bends (refracts).
What does TIR stand for?
Total Internal Reflection.
Which lens is thicker in the middle?
Convex lens.
A ray hits a mirror at 25°. What is the angle of reflection?
25°.
When light slows down in a new medium, does it bend toward or away from the normal?
Toward the normal.
Does TIR happen when light goes from water to air?
Yes.
What happens to light during total internal reflection?
It completely reflects back inside.
What are the 3 characteristics of an image in a plane mirror?
Virtual, upright, same size.
Which medium has a higher refractive index: air (1.00) or glass (1.5)?
Glass.
What happens to light during total internal reflection?
It completely reflects back inside.
Name one object that uses TIR.
Fiber optic cable.