Waves (Ray Diagrams) Flashcards
Label the angle of incidence and the angle of reflection.
Notice that the angles are always between the normal and the ray.
How should this diagram be completed to show the reflected ray?
Notice that the line with the diagonal stripes represents a mirror.
Complete a ray diagram to show how the rabbit can be seen.
This arrangement of mirrors is acting as a periscope. Note that the arrows point towards the eye.
Label the angle of incidence and the angle of refraction.
Notice that the angles are always measured between the normal and the ray.
Complete this diagram to show light entering the glass.
Since the light slows down, the ray bends towards the normal.
Label the angle of incidence and the angle of refraction.
Complete this diagram to show light leaving the glass.
When the light speeds up, the ray bends away from the normal.
Complete this diagram to show light entering the glass.
Complete this diagram to show the light ray entering and then leaving the glass block.
The ray that emerges is parallel to the incident ray.
Label the angle of incidence and the angle of refraction at the point where the light leaves the glass block.
Complete the diagram to show how the light ray travels when the angle of incidence is less than the critical angle.
Complete the diagram to show how the light ray travels when the angle of incidence is equal to the critical angle.
The ray emerges from the glass block with an angle of refraction of 90°
Complete the diagram to show how the light ray travels when the angle of incidence is greater than the critical angle.
There is no refracted ray. The ray is totally internally reflected. (T.I.R.)
After this ray enters the block, T.I.R will occur and then it will leave the block. Complete the diagram.
After this ray enters the block, T.I.R will occur twice and then it will leave the block. Complete the diagram.
Complete a ray diagram to show how the rabbit can be seen.
T.I.R. has occured twice here. The prisms are acting as a periscope.
