Asked by Rose12

among the list, which one does a beam of light travel at highest speed
a. air
b. water
c. glass
d. plastic
Answered by Rose12
Melissa is studying the distinct characteristics of waves and has discovered that when the wavelength of a wave increases, the frequency decreases. In what circumstance does the speed of a wave alter?
a. when there is a change in the mass of wave
b. when a wave bounces off a surface
c. when there is a change in the amplitude of the wave
d. when the wave comes into contact with a different medium
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