Virtual Lab on Reflection and Refraction
Day 1 - Reflection:
The Normal line is drawn perpendicular to the surface of reflection.
The Incident Ray (or Incoming Ray) comes in an hits the reflective surface and bounces off. Then it becomes the Reflected Ray The Angle of Incidence is the angle between the normal and the incident ray The Angle of Reflection is the angle between the normal and the reflection ray |
Day 2 - Refraction:
The Angle of Refraction is the angle between the normal and the refracted ray
In order to figure out whether light is speeding up or slowing down, you need to compare the direction the light ray bends. If a light ray bends towards the normal line, this bending towards the normal means that the speed of light has decreased. If it bends away, then the speed has increased. |
Day 3 - Refraction in the Real World:
Refraction and Spear fishing:
9. Here's a illustration of the same problem. Where does this image suggest you aim?
This is all to do with the refraction of light and real and apparent depth.
If the fisherman aims at the center of the fish the spear will miss!
As the light from the fish leaves the water it bends away from the normal (right angled line to the surface). This makes the fish appear to be nearer to the surface and further away because your eye assumes light travels in a straight line.
If the fisherman aims nearer to himself, he should hit the fish!
If the fisherman aims at the center of the fish the spear will miss!
As the light from the fish leaves the water it bends away from the normal (right angled line to the surface). This makes the fish appear to be nearer to the surface and further away because your eye assumes light travels in a straight line.
If the fisherman aims nearer to himself, he should hit the fish!
To complete this lab,
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