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Light that doesn't travel through a mirror is...? reflected
What does the Law of Reflection state? that the angle of incidence equals the angle of reflection.
What is the line perpendicular to where the incident ray strikes? the normal
A regular mirror is called...? plane
A plane mirror always shows what kind of image? virtual
A virtual image is always...? right side up
what is a mirror that curves outward? convex
what is a mirror that curves inward? concave
What kind of mirror creates a focal point? concave
Is a real image right side up or inverted? inverted
What is a diffuse reflection? a reflection from a rough surface
Each ray in a diffuse relfection...? obeys the law of reflection
What is reflected sound called? an echo
The study of sound is called...? acoustics
Reflections of sound are called...? reverberations
What is it called when a wave bends when it crosses the boundary between two media? refraction
Do waves travel faster in deep or shallow water? shallow
What represents the postitions of different waves? wave fronts
When do sound refractions occur? uneven winds and changes in temperature
Does sound travel faster in warm or cold air? warm
Changes in speed of light, as it passes from one medium to another, or variations in the temperature and densities of the same medium cause what? refractions
does light travel faster in air or water? air
Becuase light slows down when it enters water, the wave bends ________ the normal. towards
a distorted image caused by refraction of light in Earth's atmosphere mirage
The _____________ of part of the wave nearest the ground produces a gradual bending of light rays speeding up
a mirage is a...... real image
despersion is... the separation of light into ranges of color according to their frequency
desperion happens when light passes through a .... prism
in despersion, does red or violet bend more? violet
The conditions to see a rainbow are.... 1. the sun has to be in one part of the sky2. the water droplets have to be in the other side of the sky3. you have to have your back to the sun
What happends when the angle of incidence is larger than the critical angle? total interbal reflection
What is the critical angle? the angle of incidence at which the light is reflected at an angle of 90 degrees
when there is a critical angle the intensity of the emerging beam is...? zero
optical fibers are sometimes called light pipes
optical fibers use ______ to disperse light a series of total internal reflections
Created by: 13_kedwards
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