Concave Mirror Concepts and Properties

This video tutorial from MooMooMath and Science explains how light reflects off a concave mirror. It covers key concepts such as the ray of incidence, ray of reflection, angle of incidence, angle of reflection, line of normal, focal point, center of curvature, and vertex. The tutorial includes demonstrations to identify these elements and explains their relationships, such as how the angle of incidence equals the angle of reflection and how rays through the focal point are parallel to the line of normal. It also discusses the center of curvature and its significance in reflection.

What is a concave mirror?

• A mirror with no curvature

• A mirror that curves outward

• A mirror that curves inward

• A flat mirror

What happens to the angle of incidence and angle of reflection in a concave mirror?

• They are sometimes equal

• They are always equal

• They are always different

• They are never equal

What is the focal point in a concave mirror?

• The point where light rays diverge

• The point where light rays converge

• The point where light rays are absorbed

• The point where light rays are scattered

What is the center of curvature in a concave mirror?

• The point at the center of the mirror

• The point that is twice the focal length from the mirror

• The point at the edge of the mirror

• The point where the mirror is thinnest

What is the vertex in the context of a concave mirror?

• The point where the mirror is thickest

• The point where the mirror is thinnest

• The point where the light ray first hits the mirror

• The point where the light ray exits the mirror

What is the significance of the center of curvature in a concave mirror?

• It is the point where light rays diverge

• It is the point that defines the radius of curvature

• It is the point where light rays are scattered

• It is the point where light rays are absorbed

How is the line of normal determined in a concave mirror?

• By drawing a line perpendicular to the mirror

• By dividing the angle of incidence and reflection in half

• By measuring the distance from the focal point

• By drawing a line parallel to the mirror

What happens to a ray passing through the focal point in relation to the line of normal?

• It becomes parallel to the line of normal

• It diverges from the line of normal

• It becomes perpendicular to the line of normal

• It converges with the line of normal

What is observed when a ray passes through the center of curvature?

• It is absorbed by the mirror

• It reflects back at the same angle

• It reflects at a different angle

• It refracts through the mirror

What is the relationship between the angle of incidence and reflection when a ray passes through the center of curvature?

• The angle of reflection is greater

• They are unrelated

• The angle of incidence is greater

• They are equal