Chapter 5 sci - Ray model of light

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Incident ray (definition)

The incident ray is the light ray hitting the reflecting surface

Normal (definition)

The normal is the line perpendicular to the surface at the point of incidence

Incident ray (definition)

The incident ray is the light ray hitting the reflecting surface.

Reflected ray (definition)

The reflected ray is the light ray travelling away from the reflecting surface after bouncing off the surface.

Angle of incidence (definition)

The angle of incidence i , is the angle between the incident ray and the normal

angle of reflection (definition)

The angle of reflection , r is the angle between the reflected ray and the normal

Convex mirror (definition)

-curves outwards

-allow us to see a large view

Concave mirrors (definition)

-curves inwards

-allow us to see a “close up'“ , Magnified image

Reflection on a smooth surface ( what happens)

Each ray is reflected in the same direction

Reflection on a rough surface (what happens)

Each ray is reflected in a different direction.

Refraction of light (definition)

Refraction is the bending of light at the boundary between two different transparent materials (i,e) optical mediums) due to a change in the speed of light as it passes through one material into the other .

Refraction (how it occurs {understanding})

Refraction occurs when light travels from one medium to another (e.g., air to water), causing it to change speed and direction. An example of this can be likened to a rolling cart going from a smooth surface onto a rough surface; the change in surface affects the cart's speed and direction, similar to how light behaves in different materials.