Law of reflection (hint- how to label the diagram) Flashcards
What is the Law of Reflection?
The Law of Reflection states that the angle of incidence is equal to the angle of reflection.
True or False: The angle of incidence is measured from the normal line.
True
What do we call the line that is perpendicular to the surface at the point of incidence?
The normal line
Fill in the blank: The angle of reflection is measured from the _______.
normal line
In a reflection diagram, what does the incident ray represent?
The ray that strikes the surface before being reflected.
In a reflection diagram, what does the reflected ray represent?
The ray that bounces off the surface after the incident ray strikes it.
What is the formula for the Law of Reflection?
Angle of incidence = Angle of reflection
True or False: The Law of Reflection applies only to flat surfaces.
False
What is the angle of incidence if the angle of reflection is 30 degrees?
30 degrees
Multiple Choice: Which of the following best describes the angle of incidence?
The angle between the incident ray and the normal.
What happens to the direction of light when it reflects off a surface?
It changes direction but follows the Law of Reflection.
Fill in the blank: When light hits a mirror, it obeys the Law of _______.
Reflection
True or False: The normal line is always located within the medium of the incident ray.
True
In a labeled diagram, what label corresponds to the angle between the incident ray and the normal?
Angle of incidence
In a labeled diagram, what label corresponds to the angle between the reflected ray and the normal?
Angle of reflection
What type of surface reflects light according to the Law of Reflection?
Both smooth and rough surfaces, but the clarity of reflection varies.
Multiple Choice: What is the role of the normal line in reflection?
It acts as a reference line for measuring angles.
What is the relationship between the angles of incidence and reflection?
They are always equal.
Fill in the blank: The Law of Reflection is a fundamental principle in _______.
optics
True or False: The Law of Reflection can be observed with sound waves as well.
True
What kind of diagram is often used to illustrate the Law of Reflection?
A ray diagram
What does the term ‘incident ray’ refer to?
The incoming ray that strikes a surface.
Multiple Choice: Which of the following is NOT part of a reflection diagram?
Refraction line
What is a practical application of the Law of Reflection?
Designing mirrors and optical devices.
