In musical acoustics, a frequency ratio of 2:1 is called an octave. Humans with extremely good hearing can hear sounds ranging from 20 Hz to 20 kHz, which is approximately 10 octaves (since 210 = 1024 = 1000). (a) Approximately how many octaves of visible light are humans able to perceive? (b) Approximately how many octaves wide is the microwave region?
In musical acoustics, a frequency ratio of 2:1 is called an octave. Humans with extremely good hearing can hear sounds ranging from 20 Hz to 20 kHz, which is approximately 10 octaves (since 210 = 1024 = 1000). (a) Approximately how many octaves of visible light are humans able to perceive? (b) Approximately how many octaves wide is the microwave region?
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In musical acoustics, a frequency ratio of 2:1 is
13.
called an octave. Humans with extremely good hearing
can hear sounds ranging from 20 Hz to 20 kHz, which is
approximately 10 octaves (since 210 = 1024 1000).
(a) Approximately how many octaves of visible light
are humans able to perceive? (b) Approximately how
many octaves wide is the microwave region?
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Mars in January of 2004, Mars was 170.2 × 10° km
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