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Chapter 29. 15 Q.s
Question | Answer |
---|---|
When waves interact with matter, they can be.. | reflected, transmitted, or a combination of both |
What states that the angle of incidence and the angle of reflection are equal to each other? | The Law of Reflection |
What is the angle formed between the incident ray and the normal? | The angle of incidence |
Plane mirrors produce only.. | virtual images |
A security mirror is what type of mirror? | convex |
What does an image look like close to a concave mirror? | larger and farther away |
Is a bathroom mirror concave, convex, or plane? | plane |
What happens when light hits a rough surface? | the light is reflected in many directions |
If the differences in elevations in a surface are only about one-eighth the wavelength that falls on it, what is the surface considered? | polished |
What is a reflected sound? | echo |
Is more sound reflected from a rigid or smooth surface, or a soft or irregular surface? | rigid or smooth |
What happens to sound energy if it is not reflected? | It is absorbed or transmitted |
When the reflective surfaces are more absorbent, is the sound level higher or lower? | lower |
In a convex mirror, does an object appear closer or farther away? | farther away |
What is formed by converting light rays and can be displayed on a screen? | real images |