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Physics. PHS 5041 Optics Plane Mirrors. PHS 5041 Optics Plane Mirrors. Reflection of Light: Process that causes light to bounce off objects in its path. PHS 5041 Optics Plane Mirrors. Diffuse reflection: Occurs when light strikes an irregular surface.
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PHS 5041 OpticsPlane Mirrors Reflection of Light: Process that causes light to bounce off objects in its path
PHS 5041 OpticsPlane Mirrors Diffuse reflection: Occurs when light strikes an irregular surface. Light rays get reflected in ALL directions. Does not produce an image on reflecting surface Specular (regular) reflection: Occurs when light strikes a smooth (polished) surface. Light rays get reflected in ONE direction. Produces an image on reflecting surface
PHS 5041 OpticsPlane Mirrors Laws of Reflection: • The angle of the incident ray is equal to that of the reflected ray. • The incident ray, the reflected ray and the normal (N) lie in the same plane
PHS 5041 OpticsPlane Mirrors Plane mirrors produce images that, with respect to the object, are: _Symmetrical with respect to the mirror _Same size and position of the object _Virtual images (because they cannot be formed on a screen) *Pinhole cameras produce real images
PHS 5041 OpticsPlane Mirrors Practice
PHS 5041 OpticsPlane Mirrors Practice
PHS 5041 OpticsPlane Mirrors Reflection (plane mirror) and Vision _light rays from the object get reflected by the mirror and reach our eyes _image appears behind the mirror
PHS 5041 OpticsPlane Mirrors Virtual images _cannot be produced on a screen _are located at the intersection of the extensions of reflected rays
PHS 5041 OpticsPlane Mirrors Reversibility of Reflection
PHS 5041 OpticsPlane Mirrors Reversibility of Reflection
PHS 5041 OpticsPlane Mirrors Field of vision To be able to see an image in a mirror, we must be able to connect the image to the eye using a straight line *Reversibility of reflection indicates that our eye will also be seen by the object generating said image
PHS 5041 OpticsPlane Mirrors Field of vision All the space in front of a mirror which we are able to see from a given vantage point Can also be determined using the image of the observer
PHS 5041 OpticsPlane Mirrors How long? In order to be able to produce the complete image of a person (head-to-toe), a mirror must be HALF of the height of a person
PHS 5041 OpticsPlane Mirrors Applications
PHS 5041 OpticsPlane Mirrors Applications
PHS 5041 OpticsPlane Mirrors Applications
PHS 5041 OpticsPlane Mirrors Applications
PHS 5041 OpticsPlane Mirrors How many images can be produced (N)? (Formula that relates N and the angle between two mirrors?) N = (360 / θ) - 1