Quiz on the Law of Reflection

What is the role of the normal in the law of reflection?

• It is a line parallel to the mirror.

• It is a line perpendicular to the mirror.

• It is a line that bisects the angle of incidence.

• It is a line that bisects the angle of reflection.

Tags

NGSS.MS-PS4-2

What does the optical density of a medium measure?

• The actual density of the medium

• The speed of sound in the medium

• How well it can transmit light

• The temperature of the medium

What is Snell's Law used for?

• Measuring the speed of sound

• Calculating the angle of reflection

• Determining the angle of refraction

• Measuring the temperature of a medium

What is a ray diagram used for?

• To measure the focal length

• To show where the image forms after being reflected or refracted

• To locate the center of curvature

• To describe the aperture

What is the focal length?

• The distance from the lens or mirror to the principal focus

• The center of a lens or mirror

• The main line through the center of the mirror

• A tracing of the light rays

When an object is between the center of curvature and the principal focus in a concave mirror, how is the image described?

• Reduced and upright

• Enlarged and inverted

• Enlarged and upright

• Reduced and inverted

What is the nature of the image formed by a convex mirror?

• Real and enlarged

• Virtual and reduced

• Real and reduced

• Virtual and enlarged

What happens to light when it passes from a denser medium to a rarer medium?

• It bends towards the normal

• It bends away from the normal

• It travels in a straight line

• It gets absorbed completely

Tags

NGSS.MS-PS4-2

Which type of lens is used to correct myopia?

• Convex lens

• Concave lens

• Cylindrical lens

• Plano-convex lens

What is the principal axis of a lens?

• The line passing through the center of curvature

• The line perpendicular to the lens surface

• The line joining the optical center and the principal focus

• The line parallel to the lens surface