Blue light has a wavelength of 450-495 nm (nanometers or billionths of a meter). It falls in the higher frequency of the visible light spectrum.
Red has the longest wavelength (620-750 nm) and violet has the smallest wavelength in the visible spectrum. The human eye can perceive wavelengths ranging between 380 (violet) and 750 nm (red). Blue has the second shortest wavelength after violet.
These are the wavelength ranges for each of the seven colors that comprise the visible spectrum:
(Color) (Wavelength)
violet 380-450 nm
blue 450-495 nm
green 495-570 nm
yellow 570-590 nm
orange 590-620 nm
red 620-750 nm
The frequency f = 667,000,000,000 Hz of blue light equals the wavelength lambda = 0.000000449 meters = 449 nanometers. Scroll down to related links and look at "Radio and light waves in a vacuum".
The color of the wavelength lambda = 685 nanometers is "deep red" and not blue. The wavelength lambda = 685 nanometers equals the frequency f = 503,852,870,588,235 Hz. Blue light is between 490 and 450 nonometers. 1 nanometer = 1×10−9 meter. 685 nm = 0.000000685 meters. Scroll down to related links and look at "Radio and light waves in a vacuum".
The color of the wavelength lambda = 446 nanometers equals the frequency f = 672,180,399,103,139 Hz (blue light). 1 nanometer = 1×10−9 meter 446 nm = 0.000000446 meters Scroll down to related links and look at "Radio and light waves in a vacuum".
For any freq / wavelength combination, their product always equals the speed of light, c,
e.g. freq * wavelength = 3 x10^8 m/s
This is handy because given any freq or any wavelength we can always compute the missing value because the speed of light is constant.
So, in your case 6.26 x 10^14 Hz (freq) * wavelength = 3 x 10^ 8 m/s or, rearranging:
wavelength = (3 x 10^8 m/s) / 6.26 x 10^14 Hz
wavelength = 4.79 x 10-7 m
similarly, if given a wavelength and asked for a freq, you divide c by the wavelength
Hope this helps,
M.V.C.
=6.70×1014
The wavelength is λ = c / f = 299,792,458 m/s / 6.67×10^14 Hz
= 4.4964 × 10^−7 m.
Please use the standard formula for waves: speed = frequency x wavelength. Convert the wavelength from nm to meters; the speed of light is about 300,000,000 meters/second.
Frequency = speed/wavelength = 299,792,458/670 x 10-9 = 4.4745 x 1014 Hz = 447,450 GHz
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Wavelength is speed, of light, in this case, divided by frequency. 3 x 108 meters per second divided by 6.82 x 1014 Hertz is 0.4 micrometers.
Red light has a longer wavelength than blue light, (i.e. greater distance for one oscillation of red light compared to blue light) so there are less oscillations in the same period of time for red light, and thus red light has a lower frequency than blue light. More concisely: Wavelength = Wavespeed / Frequency , where wavespeed is constant So Frequency = Wavespeed / Wavelength Therefore as wavelength increases, frequency decreases. Make sense? Jack
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red has a lower frequency and a longer wavelength than blue
Yes. Blue light has a lower wavelength than yellow light, which is why it is perceived by out eyes as a different color. Blue light's wavelength is around 450 nanometers and yellow light's wavelength is around 575 nanometers. since the speed of light is constant for all light, and frequency is the speed of light over the wavelength of the light, the larger the wavelength, the lower the frequency. And the lower the frequency, the lower the energy. So the shorter wavelength of light (in this case, blue colored light) has a faster frequency, and therefore more energy.
Wavelength is speed, of light, in this case, divided by frequency. 3 x 108 meters per second divided by 6.82 x 1014 Hertz is 0.4 micrometers.
very nice answer.
Red light has a longer wavelength than blue light, (i.e. greater distance for one oscillation of red light compared to blue light) so there are less oscillations in the same period of time for red light, and thus red light has a lower frequency than blue light. More concisely: Wavelength = Wavespeed / Frequency , where wavespeed is constant So Frequency = Wavespeed / Wavelength Therefore as wavelength increases, frequency decreases. Make sense? Jack
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The color, the frequency, and the wavelength.
red has a lower frequency and a longer wavelength than blue
The highest frequency (shortest wavelength) of visible lightis the light at the blue end of the visible spectrum.
Yes. Blue light has a lower wavelength than yellow light, which is why it is perceived by out eyes as a different color. Blue light's wavelength is around 450 nanometers and yellow light's wavelength is around 575 nanometers. since the speed of light is constant for all light, and frequency is the speed of light over the wavelength of the light, the larger the wavelength, the lower the frequency. And the lower the frequency, the lower the energy. So the shorter wavelength of light (in this case, blue colored light) has a faster frequency, and therefore more energy.
In the visible region of electromagnetic spectrum VIBGYOR, violet having highest frequency is at one extreme and red having the lowest frequency goes to other extreme. So violet with shortest wavelength and red with the longest.
wavelength frequency energy are different. speed should be the same.
Yes. Blue light has a shorter wavelength, and therefore a higher frequency, than red light.
The longest wavelengths of light are the lowest frequencies (and the lowest energy and the longest period, too). These are the reds, and moving up the spectrum, we encounter orange, yellow, green, blue and violet. The violet light has the shortest wavelength (highest frequency), and the highest energy. The infrared (IR) is below the red (longer wavelength and lower frequency), and the ultraviolet (UV) is above the violet (shorter wavelength and higher frequency).