An octave is a factor of 2 in the frequency. So, just divide 1200 Hz. by 2, then divide the result by 2 again.
The frequency of vibrating pendulum lies below the audible range (20 Hz to 20,000 Hz)
For the human ear, sound is audible in the range of 20 Hz (Hertz) to 20000 Hz. Sounds below 20 Hz are "infrasonic" and have too low a frequency to be heard; sounds above 20000 Hz are "ultrasonic" and are too high a frequency to be heard.
It is infrasound, below 20 Hz, that we cannot hear, but feel.
365 Hz or 375 Hz.
The frequency 55 Hz has a wavelength of about 6.23meters.
That would be 1200 Hz. Every octave is a superposition of the note below it, so the frequency doubles. The octaves above that would be 2400 Hz, 4800 Hz, and so on...
Giraffes can hear below 20 Hz to about 10 Hz. To communicate they can hum below 20 Hz but they often hum at around 90 Hz which humans can still hear.
If a bulb has 50 Hz frequency and it's supply is 60 Hz frequency, it will still glow, despite the allowance of 10 HZ frequency.
The frequency of vibrating pendulum lies below the audible range (20 Hz to 20,000 Hz)
For the human ear, sound is audible in the range of 20 Hz (Hertz) to 20000 Hz. Sounds below 20 Hz are "infrasonic" and have too low a frequency to be heard; sounds above 20000 Hz are "ultrasonic" and are too high a frequency to be heard.
For the human ear, sound is audible in the range of 20 Hz (Hertz) to 20000 Hz. Sounds below 20 Hz are "infrasonic" and have too low a frequency to be heard; sounds above 20000 Hz are "ultrasonic" and are too high a frequency to be heard.
It is infrasound, below 20 Hz, that we cannot hear, but feel.
Nope.-- Visible light has frequencies roughly from 4 x 1014 Hz to 8 x 1014 Hz ... arange from lowest to highest of 4 x 1014 Hz, or one octave.-- Let's say that the lowest frequency in the total spectrum is 50 Hz (Europeanpower-line frequency) and the highest is 1019 Hz (lowest freq gamma rays) ...a total range from lowest to highest of (1019 - 50) Hz, or about 57 octaves.-- On a linear scale, of the total number of Hz in the spectrum, visible lightcovers about 0.004 percent of them.-- On a logarithmic scale, visible light covers 1 octave out of 57 octaves,or 1.74 percent of the spectrum.
There are 3octaves = 90, 180, 360, 720
-- From the AC power frequency (60 Hz) to gamma rays (1019 Hz), the electromagneticspectrum extends through something like 57 octaves(doubling of frequency).-- Just the AM radio dial alone, from 550 KHz to 1600 KHz, covers 1.54 octaves.-- The band of visible frequencies ... considered to be roughly 400 - 790 THz ...covers barely one octave if you want to be generous about it.
log2(6400/100) = log2(64) = 6
There should be two beat frequencies produced: 506 Hz and 6 Hz.