Unit 3 - Lesson 4: Reflection Flashcards
Draw and label all the features of a visible light ray reflecting off a plane mirror.
https://i.pinimg.com/736x/89/d4/4b/89d44be21fd63b23177aa4de29086de9.jpg
List all the features of a visible light ray reflecting off a plane mirror.
Incident Ray.
Angle of Incidence.
Normal.
Angle of Reflection.
Reflected Ray.
Point of Incidence.
Plane Mirror.
What does the law of reflection state? How does this law enable us to draw the reflected ray from an incident ray?
The law of reflection states the angle of incidence is the same as the angle of refection.
This law allows us to draw the reflected ray from an incident ray because of the law of reflection, which states the angle of incidence is the same as the angle of reflection.
What does this image show?
https://i.pinimg.com/736x/29/f1/ce/29f1ce259004a4bc1239c26303dbd675.jpg
Angle of incidence = angle of reflection
What is the method to draw the incident ray? (You’ll need a protractor and a ruler)
- Draw the normal (90 degrees to the shiny surface of the plane mirror)
- Measure the angle of incident (angle between incident ray and normal)
- Measure the same angle from the normal. Draw the reflected ray.
https://i.pinimg.com/736x/d4/3e/b3/d43eb36c4e02e5d299b501d7c44089ff.jpg
What is diffuse reflection?
When visible light reflects off an uneven surface. Light reflects at different angles.
What type of reflection is it when visible light reflects off an uneven surface?
Diffuse reflection.
Give an example of diffuse reflection.
An example of diffuse reflection would be light reflecting off of paper.
What is clear reflection?
When visible light reflects off a smooth surface. Light reflects at the same angle.
What type of reflection is it when visible light reflects off a smooth surface/
Clear reflection.
Give an example of clear reflection.
An example of clear reflection is a shiny mirror.
