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Physics-Chp.29
Questions
Question | Answer |
---|---|
What doe the Law of Reflection state? | That the angle of incidence and the angle of reflection are equal to each other. |
What is a reflected wave? | A light wave that bounces off a boundary. |
What is the angle of incidence? | That is the angle formed between the incident ray and the normal. |
What is the angle of reflection? | The angle formed between the reflected ray and the normal. |
The angle of incidence equals the angle of? | Reflection. |
What kind of images do plane mirrors produce? | Only virtual images. |
What is an image? | A likeness or a reproduction of an object. |
What is diffuse reflection? | The reflection of light from a rough surface. |
How does a smooth mirror reflect? | It only reflects in one direction, and in an orderly pattern. |
What is the definition of echo? | Reflected sound. |
Sound is not_________ or __________. | Absorbed;Transmitted. |
What is the study of reflective properties of surfaces? | Acoustics. |
Reverberation is.. | Multiple reflections of sound. |
What does a wave do when it is traveling at an angle and changes speed upon crossing a boundary between two media? | It bends. |
What are the two types of "reflectors"? | Diffused reflectors and Polished reflectors. |