Images in Curved Mirrors

How are curved mirrors created?

Curved mirrors are created when you make part of the surface of a sphere reflective.

If the reflection is from the inner surface of the sphere, the mirror is…

Concave

The centre of concave mirror bulges____from you.

Away

The reflection of the mirror is from the outer surface of the sphere.

Convex Mirror

The centre of a convex mirror bulges____you.

Toward

Parts of a Concave Mirror

Focal point (F), Vertex (V), Principal axis, Focal length (f), d•, di, h•, hi

Focal Point (F)

The point where light rays meet, or appear to meet

Vertex (V)

The middle point of a curved mirror.

Principal Axis

An imaginary line drawn through the vertex, perpendicular to the surface of the curved mirror.

Focal Length (f)

The distance from the vertex to the focal point of a curved mirror.

d•

Represents the distance between the vertex and the object.

di

Represents the distance between the vertex and the image.

h•

Represents the height of the object.

hi

Represents the height of the image.

Define SALT

S: Size (Smaller, Larger, and Same size)

A: Attitude (Upright, and Inverted)

L: Location (Behind, and Closer)

T: Type (Real - placed on a screen, Virtual - can only be seen by looking at or through the optical device)

A mirror with a surface curved outward is a convex mirror, this type of mirror is also called a

Diverging Mirror

Instead of collecting light rays like a concave mirror, a convex mirror____out the reflection rays.

Spreads

What is a real image?

A real image is formed when light rays converge at a point, creating an image that can be projected onto a screen.

What is a virtual image?

A virtual image is formed when light rays appear to diverge from a point, creating an image that cannot be projected and is only visible through an optical device like a mirror or lens.

List 3 uses for concave mirrors.

1. Reflecting Telescopes: To gather and focus light from distant celestial objects.

2. Makeup or Shaving Mirrors: To provide a magnified view of the face for precision tasks.

3. Vehicle Headlights: To focus light into a beam for illumination.

List 3 uses for convex mirrors.

1. Rearview or Side Mirrors in Vehicles: To provide a wide field of view for better situational awareness.

2. Security Mirrors in Stores: To monitor large areas and reduce blind spots.

3. Road Safety Mirrors: At intersections or sharp turns to enhance visibility around corners.