Electromagnetic waves
they consist of oscillating electric and magnetic fields, which radiate outward from the sound source at the speed of light in transverse waves
light waves have no medium
a constant (variable "C")
C=3.00*10 to the power of 8 m/s
C= wavelength times freq
any point on a wave front can be considered the source of a new wave
rays
power of the light source and the distance from the source
it travels in a straight line
some of the light is absorbed and some is reflected
you can see the light on its surface but you can't see through it
can see light but can't see the object behind it
the change in direction of an electromagnetic wave on a surface that causes it to move away from the surface
The texture of the surface it is reflected on
reflects the light in many directions (diffuse reflection)
reflects the light in one direction (specular reflection)
line perpendicular to the reflecting surface
angle between the incoming ray of light and the normal line
the angle formed by the outgoing ray of light and the normal line
the angle of reflection
a virtual image that comes from a location behind the mirror; the light appears to come from behind the mirror
the same distance from the mirror as the object
same size as the object being reflected
flat mirror
inverse- as one decreases the other increases
Finite- limited number
no
simple geometry, the law of reflection, and ray diagrams
Real images can be displayed on a surface, virtual images cannot