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Stack #354606
Chapter 29 Questions
Question | Answer |
---|---|
What is the only mirror that produces a virtual image? | Plane mirror |
Which mirror curves outward and its image is virtual image? | Convex mirror |
What do we call multiple reflections of sound that just keep bouncing? | Reverberations |
Which images will always be inverted? | Real images |
What is the law of reflection? | The angle of incidence equals the angle of reflection. |
What happens when light hits a rough surface? | The light is reflected in many directions. |
Security mirrors and traffic control mirrors are examples of what kinds of mirrors? | Convex mirrors |
In which mirror do you see a larger and virtual image? | Concave mirror |
What is an incident ray? | A light ray that strikes a boundary. |
What term means to spread apart? | Diverge |
What is diffuse reflection? | It's the reflection of light from a rough surface. |
What happens to sound energy that is not reflected? | It's either absorbed or transmitted. |
What is accoustics? | The study of reflective properties of surfaces. |
What has to happen for a surface to be considerd polished? | The surface must be about 1/8 the wavelength of the light that falls on it. |
What do we call the line perpendicular to the point where the incident ray strikes the barrier? | The normal |