Podcast
Questions and Answers
What is the definition of an incident ray?
What is the definition of an incident ray?
- The ray perpendicular to a mirror
- The ray coming onto a surface (correct)
- The ray that is reflected from a surface
- The ray showing the direction of light
In physics, what does 'normal' refer to?
In physics, what does 'normal' refer to?
- The angle of incidence
- A line perpendicular to the mirror (correct)
- A type of reflection
- The shape of the mirror
What is the relationship between the incident angle and the reflection angle according to the law of reflection?
What is the relationship between the incident angle and the reflection angle according to the law of reflection?
- They are always equal (correct)
- They are perpendicular angles
- They are always unequal
- They form a right angle
Why does a reflection in a spoon appear distorted?
Why does a reflection in a spoon appear distorted?
What is the function of an arrowhead on a ray diagram?
What is the function of an arrowhead on a ray diagram?
Why is it important to measure the incident angle from the normal and not from the mirror itself?
Why is it important to measure the incident angle from the normal and not from the mirror itself?
Flashcards
Incident Ray
Incident Ray
The ray of light that strikes a surface.
Normal
Normal
A line drawn perpendicular to the surface at the point where the incident ray strikes.
Angle of Incidence
Angle of Incidence
The angle between the incident ray and the normal.
Angle of Reflection
Angle of Reflection
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Law of Reflection
Law of Reflection
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Distorted Reflections in a Spoon
Distorted Reflections in a Spoon
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Study Notes
Incident Ray
- An incident ray is a ray of light that strikes a surface.
Normal
- In physics, "normal" refers to a line perpendicular to a surface at the point of contact.
Law of Reflection
- The angle of incidence is equal to the angle of reflection.
- The incident angle and the reflected angle are both measured from the normal.
Spoon Reflection
- A spoon's curved surface causes different parts of the reflected light to converge or diverge, resulting in a distorted image.
Ray Diagram Arrowhead
- The arrowhead on a ray diagram indicates the direction of light travel.
Incident Angle Measurement
- Measuring the incident angle from the normal ensures consistent and accurate measurement, regardless of the angle of the mirror.
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Description
Test your knowledge on reflection and incident rays with this quiz. Learn about how mirrors work, the concept of plane surfaces, distorted reflections, and the behavior of light rays.
