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19 Cards in this Set
- Front
- Back
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Red light and what other light travel at the same speed?
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Blue light
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What light a longer wavelength and lower frequency?
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Red light
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Which light has a smaller wavelength and a higher frequency?
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Blue light
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Angle of incidence equals ______________________.
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Angle of reflection
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When is the angle of refraction small?
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In a dense medium
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What is the index of refraction?
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The ratio of the speed of light in a vacuum (c) to the speed of light in a medium (c). n=c/v |
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What light passes through narrow slits or pinholes, what pattern is produced?
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Diffraction pattern
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A concave mirror (also called converging mirror) has what characteristic?
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It converges at the focal point
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A convex mirror (also called diverging mirror) has what characteristic?
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It curves outwards and always produces a virtual image that is smaller than the object
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What is a real image?
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A real image can be projected on a screen and is formed by converging (concave) rays
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What can't a virtual image be projected on a screen?
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Because its rays do not converge
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Imagine that you hear two voices coming from around the corner. Is this diffraction?
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Yes. The sound waves are bending around the wall.
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When talking about sound, what is the definition of interference?
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When the same signals of the same frequency intersect and produce a "dead spot" of no sound in places
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Define the Doppler effect
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When the pitch of sound generated by a moving object due to the motion of the object
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What is the definition of a beat?
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Instances of constructive interference produced by two sources with frequencies that differ by fewer than ten cycles per second
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True or false: Motion is relative
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True
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Photoelectric effect supports which theory? (wave theory of light, or particle theory of light)
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Particle theory of light
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A concave lens is a lens that results in what kind of lens? (diminished, enlarged)
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diminished
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