P14 Light and Optics Quiz (Triple Only)

Which type of reflection occurs when light reflects off a smooth surface in a single direction?

• Diffuse reflection

• Specular reflection

• Transparent reflection

• Opaque reflection

What happens to light when it passes through a transparent object?

• It is absorbed and not transmitted

• It is scattered and reflected

• It is transmitted

• It is completely blocked

How can the magnification of an image be calculated?

• Image height + Object height

• Image height - Object height

• Image height / Object height

• Image height * Object height

What is the focal length in the context of convex lenses?

• The distance from the lens to the object

• The distance from the lens to the principal focus

• The distance from the object to the principal focus

• The distance from the lens to the image

What type of image is formed by concave lenses?

• Real image

• Virtual image

• Diminished image

• Enlarged image

What happens to a wave when it slows down as it crosses a boundary between two different substances?

• It bends away from the normal

• It bends towards the normal

• It continues in a straight line

• It stops moving

What is the term for the imaginary line at right angles to the direction a wave is moving?

• Wave front

• Normal line

• Principal axis

• Focal length

What is the difference between a concave and convex lens?

• Convex bulges out in the middle, concave is thinner in the middle than at the edges

• Convex is thinner in the middle, concave bulges out in the middle

• Both lenses are the same

• Convex is used for diverging light, concave for converging light

What does a convex lens do to parallel rays of light?

• Light diverges (spreads out)

• Light converges (comes together) at the principal focus

• Light remains parallel

• Light bends away from the principal focus

What does a concave lens do to parallel rays of light?

• Light converges (comes together)

• Light remains parallel

• Light diverges (spreads out) so they appear to have come from the principal focus

• Light bends towards the principal focus