Spherical mirrors, and lenses



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spherical mirrors, and lenses
6.7 wkst key, 11.1 study guide 1 (1)


The properties of the image being formed in a spherical mirrors, and lenses
● Mirrors have two faces the transparent face, and the opaque face
● We have two types of lenses also convex and concave lenses, and the lenses MUST
be curved. If it is curved inside, then it is concave, and if it is curved outside, then it is convex In lenses, there are no opaque faces, instead there are two transparent faces Mirrors reflect light, lenses transmits lights, orb refractionbProperties of mirrors virtual image, the distance from the object through the mirror = the distance of the image through the mirror The properties of the image depends on the position of the object Principal axis is a virtual axis that splits the mirror into two symmetric parts. The center
of curvature is the center of the sphere from which the mirror is cut. The focus is the point where the reflected rays meet. The pole of the mirror is the point where the principal axis pierces the mirror There are three rules to identify the properties of image. Ray of light which is parallel to the principal axis after reflection passes through the focus. Ray of light passing through the center of curvature is reflected back along the same path. Ray of light passing through the focus after reflection becomes parallel to the principal axis If the two rays intersect, then you don’t need to follow the third rule.
Concave
● Case 1: real, inverted and diminished Case 2: Object is at C real, inverted, and same size Case 3: Object is between C and F real inverted and magnified Case 4: Object at the focus. The reflected rays are parallel, and they will never meet Case 5: Object is between F and P. The rays are divergent, and they will never meet
Convex
● The image on the convex mirror does not depend on the position of the object


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