Physics unit 1

reversed

flipped horizontally

image

a copy of an object, made by light and a lens or mirror

refraction

the bending of light as it passes from one medium to another, due to a change in its speed.

refraction optical device

lens

light rays from an object go.. (refraction)

through

does refraction reverse an image

no

reflection

the bouncing back of light rays

reflection optical device

mirror

light rays from an object go.. (reflection)

back

is a reflection image reversed

yes

Real image

An image formed by converging light rays that can be projected onto a screen. It appears inverted and is distinct from a virtual image. (where the light rays actually go)

Virtual image

An image formed by diverging light rays that cannot be projected onto a screen. It appears upright and is distinct from a real image. (the image appears somewhere else)

Concave

mirror that diverges light rays, curves inward and can produce both real and virtual images depending on the object's distance from the mirror.

Convex

mirror that converges light rays, curves outward, and typically produces virtual images.

Plane

mirror with a flat surface that produces virtual images that are upright and of the same size as the object.

Focal point

is the point where light rays either converge or appear to diverge after reflecting off a mirror.

Optical ray

is a line that represents the path along which light energy travels, often depicted as an arrow in diagrams.

Parallel ray

is a type of optical ray that travels parallel to the principal axis of a mirror and is used to determine the focal point and behavior of light reflection.

Focus ray

is an optical ray that passes through the focal point of a lens or mirror, resulting in a specific path where light converges after reflection or refraction.

Concave or convex?

Concave

Concave or convex?

Convex

convex lens ray

is an optical ray that passes through a convex lens, diverging after refraction, leading to a specific path where light spreads out.

F in a convex lens ray

F prime