Mirror quiz

Question 1

Spherical abberation

Answer 1

an optical distortion where light rays passing through different parts of a lens or mirror focus at varying distances, resulting in a blurry or imperfect image.

Question 2

Huygen’s principle (law of reflection)

Answer 2

Angle of reflection equals angle of incidence.

Question 3

illumination vs illuminance

Answer 3

“illumination” refers to the act of providing light or the state of being lit, while “illuminance” is the measure of how much light is falling on a surface, measured in lux (lumens per square meter)

Question 4

real image

Answer 4

the collection of focus points actually made by converging/diverging rays

Question 5

virtual image

Answer 5

an upright image that is achieved where the rays seem to diverge

Question 6

electromagnetic waves

Answer 6

a wave that consists of oscillating electrons and magnetic fields which radiate outward from the source at the speed of lights

Question 7

reflection

Answer 7

the change in direction of an electromagnetic wave from the surface

Question 8

angle of incident

Answer 8

the angle between a ray that strikes a surface and the line perpendicular to that surface at the point of contact

Question 9

angle of reflection

Answer 9

the angle formed by the line perpendicular to a surface and the direction in which a reflected rays moves.