Ch.25 Reflection PHY
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10 Terms
What is the law of reflection?
The angle of reflection (that the ray makes with the normal to a surface) equals the angle of incidence
What is the law of reflections formula?
𝜃r=𝜃i
What is specular reflection?
when light reflects from a smooth surface
What is diffuse reflection?
when light reflects from a rough surface
What are the properties of a plane (flat) mirror?
The image is upright and flipped (right to left)
The image size is equal to the objects size, hi=ho
The image is located as far behind the mirror as the object in front of it, di=do
The image is virtual, as the light does not go through it
What is a spherical mirror?
Spherical shape that is concave or convex
What is the formula for the focal length of the concave mirror?
f = ½ R
What is the focal length of a convex mirror?
f =- ½ R
What is the spherical mirror equation?
1/f = 1/do + 1/di
What is the magnification equation?
m = hi/ho = - di/do
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