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Chapter 29 Questions
| Question | Answer |
|---|---|
| How is the angle of reflection related to the angle of incidence? | They are equal. |
| How do the waves reflect from a convex mirror? | They diverge. |
| If an image in a mirror is inverted, what type of image is this? | A real image |
| True of False: An object can be polished to some waves but not polished for others | True |
| Usually waves are ________ when they fall on a transparent object. | Partly reflected and partly refracted |
| Why are metals so shiny? | They reflect almost all fequencies of visible light. |
| What happens to sound energy if it is not absorbed? | It is absorbed or transmitted. |
| What happens to light that falls on a rough surface? | The rays are reflected in many directions. |
| Describe the shape of a concave, convex, and plane mirror. | Plane mirrors are flat. Concave mirrors curve inward. Convex mirrors curve outward. |
| What usually happens when a wave reaches the boundary between two media? | Some or all of the waves are reflected back into the first media. |
| What is the wave that strikes a boudary called? | An incident wave. |
| What kind of image can be projected onto a screen? | A real image. |
| Why do colors in a mirror appear the same as in reality. | The frequency of the reflected light wave is the same as the incident light wave. |
| What size is the image in a convex mirror compared to reality? | The image appears smaller. |
| How are convex mirrors used in the world today? | They are used as security mirrors and traffic control mirrors. |
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