2.2.2 Reflection of Light

Cards (68)

What is the reflection of light?
The bouncing back of light
What is the formula for the Law of Reflection using angles?
$\theta_{i} =$ $\theta_{r}$
What type of reflection occurs when light reflects off a smooth, shiny surface?
Specular reflection
What type of surface causes diffuse reflection?
Rough, matte surface
Light rays are scattered in various directions during diffuse reflection.
The Law of Reflection states that the angle of incidence is equal to the angle of reflection
The Law of Reflection is crucial for understanding how mirrors and other reflecting surfaces behave
Specular reflection occurs when light reflects off a smooth, shiny surface
Diffuse reflection occurs when light reflects off a rough, matte surface
The Law of Reflection states that the angle of incidence is equal to the angle of reflection
Order the characteristics to compare specular and diffuse reflection.
1️⃣ Type of surface (smooth or rough)
2️⃣ How light rays are reflected (predictable or scattered)
3️⃣ Type of image produced (clear or blurred)
4️⃣ Example of reflection (mirror or wall)
What is the relationship between the angle of incidence and the angle of reflection in specular reflection?
They are equal
Convex mirrors are used in vehicles to provide a wider field of view.
True
Reflection of light occurs when light bounces back after hitting a surface
Match the angle of incidence with the corresponding angle of reflection:
30° ↔️ 30°
45° ↔️ 45°
60° ↔️ 60°
Order the steps involved in the process of light reflection:
1️⃣ Light travels towards a surface
2️⃣ Light hits the surface
3️⃣ Light bounces back from the surface
If a light ray hits a mirror at 40° to the normal, it will be reflected at 40° from the normal. 
True
The Law of Reflection states that the angle of incidence is equal to the angle of reflection
If a light ray hits a mirror at an angle of 40°, it will be reflected at an angle of 40°
Match the type of reflection with its description:
Specular ↔️ Mirror-like reflection
Diffuse ↔️ Scattered reflection
In specular reflection, the angle of incidence is equal to the angle of reflection. 
True
What is the main difference between specular and diffuse reflection?
Predictable vs scattered reflection
What is the angle of incidence defined as?
Angle between ray and normal
In specular reflection, the angle of incidence is equal to the angle of reflection. 
True
In diffuse reflection, light rays are reflected in many different directions.
True
If a light ray hits a mirror at an angle of incidence of 50°, what is the angle of reflection?
50°
In specular reflection, light reflects off a smooth, shiny surface in a predictable, mirror-like way
In diffuse reflection, light rays are reflected in many different directions
Telescopes and cameras use mirrors or lenses to reflect and focus light
The angle of incidence is always equal to the angle of reflection in both specular and diffuse reflection. 
True
If a light ray hits a mirror at an angle of 40° to the normal, at what angle will it be reflected?
40°
What does the Law of Reflection state?
Angle of incidence equals reflection
What are the two main types of reflection?
Specular and diffuse
Match the type of reflection with its characteristic:
Specular Reflection ↔️ Smooth, shiny surface
Diffuse Reflection ↔️ Rough, matte surface
If a light ray hits a mirror at 40° to the normal, it will be reflected at 40° from the normal.
The angle of incidence is measured between the incoming light ray and the normal to the surface.
True
Light reflects off a smooth, shiny surface in a predictable, mirror-like way during specular reflection.
Light reflects off a rough, matte surface in a scattered, unpredictable way during diffuse reflection.
Concave mirrors are used in reflecting telescopes to focus light and produce clear, magnified images.
The angle of incidence is measured between the incoming light ray and the normal to the surface.
True