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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
A mirror that has the shape of a piece cut out of a spherical surfaceSpherical Mirrors
The first mirrors used by humansPools of water
Earliest known manufactured mirrorsPolished stoned pieces
The mirrors that the Chinese began makingSilver-mercury amalgams
Conducted various experiments with curved polish iron mirrorsClaudius Ptolemy
The point in the center of the mirror passes through the curve of the mirror and has the same tangent and curvature at that point.Center of curvature
It's the linear distance between the pole and the center of curvatureRadius of curvature
The imaginary line passes through the optical center and the center of curvature of any lens or a spherical mirrorPrincipal axis
Midpoint of the spherical mirrorPole
A point from which the reflection of light actually happensAperture
Gives the size of the mirrorAperture
Also called the focal pointPrincipal focus
It’s on the axis of a mirror or lens wherein rays of light parallel to the axis converge or appear to converge after reflection or refraction.Principal focus
It’s any given point, where light rays parallel to the principal axis, will converge after getting reflected from the mirror.Focus
types of spherical mirrorsconcave mirror and convex mirror
the reflective surface is curved inwardsconcave mirror
the reflective surface is curved outwardsconvex mirror
the reflected image is magnified but the field of view is limitedconcave mirror
depending on the focal length, the reflective image is reduced but the field of view is moreconvex mirror
used as shaving mirrors or by dentists and even in telescopesconcave mirror
very useful for drivers as the blind spot are drastically reducedconvex mirror
distance from the vertex to the center of curvatureR or radius
the point where the principal axis meets the reflective surfacePoint A
Point lies in the midway between the vertex and the center of curvatureF or the focal point
The distance between the vertex and the focal point of the mirrorf or the focal length
a line passing the center of this sphere which touches the reflecting surface at its centerPrincipal axis
Rearview mirrorconvex mirror
security mirrors in atmconvex mirror
satellite dishesconcave mirror
headlights in carconcave mirror
shaving mirrorconcave mirror