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Mirrors - General Physcis - Lecture Slides, Slides of Physics
This course covers Force, acceleration, gauss law, ideal law, polarization, newton laws, pendulum, reflection and refraction equations, kinetic energy, RC circuits, fusion and many other topics. Key points of this lecture are: Mirrors, Image Geometry, Image Formation, Virtual and Real, Plane Mirror, Convex Spherical Mirror, Focal Point, Ray Rules, Concave Spherical Mirrors, Concave Geometry
Typology: Slides
2012/2013
1 / 15
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Mirrors
Image Geometry
The
object distance
is the
distance from the object to themirror or lens:•
Denoted by
p
The
image distance
is the
distance from the image to themirror or lens:•
Denoted by
q
Images are formed at the pointwhere rays actually intersect orappear to originate
The
lateral magnification
of
the mirror or lens is the ratio ofthe image height to the objectheight:•
Denoted by
M
Virtual and Real
A
real image
is one in which light actually passes
through the image point: Real images can be displayedon screens
A
virtual
image
is one in which the light does not pass
through the image point•
Virtual images cannot be displayed on screens
-^
The light appears to diverge from that point
To find where an image is formed, it is always necessaryto follow at least two rays of light as they reflect from themirror