Optics Definitions Quiz

Define reflection

• Reflection is the bending of light as it passes through a medium
• the change in direction of a light wave when it reaches a surface and bounces off said surface

• Reflection is the absorption of light by a surface
• Reflection is the emission of light from a source

Define concave mirrors

• Mirrors that curve inward and can focus light to a specific point
• Mirrors that curve outward and disperse light
• Mirrors that are flat and reflect light evenly
• Mirrors that are opaque and do not reflect light

Define luminescence

• The absorption of light by a substance resulting from heat.
• The reflection of light by a substance.
• The absence of light in a substance.
• The emission of light by a substance not resulting from heat.

Define bioluminescence

• Bioluminescence is the process of photosynthesis in plants
• Bioluminescence is the ability of animals to fly
• Bioluminescence is the study of rocks and minerals
• Bioluminescence is the production and emission of light by living organisms.

Define focal point

• The focal point is where light rays converge after reflecting off a concave mirror or refracting through a converging lens.
• The focal point is where light rays converge after reflecting off a convex mirror or refracting through a converging lens.
• The focal point is where light rays converge after reflecting off a convex mirror or refracting through a diverging lens.
• The focal point is where light rays diverge after reflecting off a concave mirror or refracting through a converging lens.

Define principal axis

• A line that intersects the focal point of a lens or mirror
• An imaginary line passing through the center of a lens or mirror that is perpendicular to the surface.
• A line passing through the edge of a lens or mirror
• A line parallel to the surface of a lens or mirror

Define incandescence

• The process of converting light into heat
• The reflection of light from a surface
• The absorption of light by an object
• The emission of light from a hot object due to its high temperature.

Define convex mirrors

• Convex mirrors are mirrors that curve outward and reflect light outwards.
• Convex mirrors are mirrors that curve outward but reflect light inwards.
• Convex mirrors are flat mirrors that do not reflect light.
• Convex mirrors are mirrors that curve inward and reflect light inwards.

Define plane mirrors

• Plane mirrors are concave reflective surfaces
• Plane mirrors are transparent surfaces
• Plane mirrors are surfaces that absorb light
• Plane mirrors are flat reflective surfaces that reflect light without scattering it.

Define Incident ray

• An incident ray is a ray of sound that strikes a surface.
• An incident ray is a ray of light that reflects off a surface.
• An incident ray is a ray of heat that strikes a surface.
• An incident ray is a ray of light that strikes a surface.