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Clark; Chapter 29

Clark; Chapter 29 Study Stack Assignment

QuestionAnswer
What usually happens when a wave reaches a boundary between two media? Usually some or all of the wave bounces back into the first medium
State the law of reflection- The angle of incidence and the angle of reflection are equal to each other.
What images do plane mirrors produce? Virtual images
What happens when light is incident on a rough surface? It's reflected in many directions.
What happens to sound energy that isn't reflected? It's either absorbed or transmitted.
What happens when a wave that is traveling at an angle changes its speed upon crossing a boundary between two media? It bends
When are sound waves refracted? When parts of a wave front travel at different speeds
What causes refraction? Changes in the speed of light as it passes from one medium to another, or variations in the temperatures and densities of the same medium
What causes a mirage? Refraction of light in the Earth's atmosphere
Why will different frequencies of light refract differently and bend at different angles? Different frequencies of light travel at different speeds in transparent materials
What must happen in order for you to see a rainbow? The sun must be shining in one part of the sky and the water droplets in a clouds or in falling rain must be in the opposite part of the sky
When does total internal reflection occur? When the angle of incidence is larger than the critical angle
What type of mirror produces a real image? Concave when far away
Concave mirror curves ____________. Inward
Convex mirror curves ___________. Outward
Created by: 100000025214502
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