Reflection and Refraction

What is the angle of incidence?

• The angle between the incoming light ray and the normal line.

• The angle between the outgoing light ray and the surface.

• The angle formed by two intersecting light rays.

• The angle between the light ray and the horizontal plane.

What type of lens makes objects appear smaller?

• Convex lens

• Concave lens

• Biconvex lens

• Cylindrical lens

What type of mirror is flat?

• Concave mirror

• Convex mirror

• Plane mirror

• Spherical mirror

What do we call the line perpendicular to the surface at the point of incidence?

• Normal line.

• Tangent line.

• Secant line.

• Chord line.

What is the critical angle?

• The angle of incidence that results in total internal reflection.

• The angle at which light begins to refract.

• The angle of incidence equal to the angle of reflection.

• The angle at which light is completely absorbed.

What is the term for a lens that makes objects appear larger?

• Concave lens

• Convex lens

• Flat lens

• Biconcave lens

What is total internal reflection?

• When light reflects completely within a medium, not passing through the boundary.

• When light passes through a medium and refracts at the boundary.

• When light is absorbed by a medium and does not reflect.

• When light travels in a straight line without any interaction with a medium.

What is a convex mirror?

• A mirror that curves inward and converges light rays.

• A flat mirror that reflects light without distortion.

• A mirror that curves outward and diverges light rays.

• A mirror that only reflects light in one direction.

What is the term for light bending as it passes from one medium to another?

• Reflection

• Refraction

• Diffraction

• Absorption

What is the term for light bouncing off an object?

• Refraction

• Diffraction

• Reflection

• Absorption