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Does frequency determine where a light wave appears on the electromagnetic spectrum?
Wiki User
∙ 15y ago
Yes. c=fL where L = wavelength, c=speed of light and f = frequency (I cannot write the Greek letter lamda for wavelength)
Wiki User
∙ 12y ago
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How do you explain the different types of electromagnetic energy?
Electromagnetic (EM) energy is just one type of energy. It's a force in nature, and is one of the four fundamental forces we know of (along with gravity, and the strong and weak interactions, or forces). Let's look at how electromagnetic energy appears, and we'll do that by looking across the range of frequencies in which it is distributed. We call this distribution the electromagnetic spectrum, and we'll start at the bottom and work our way up. We'll remind you that low frequency means long wavelength and long period and low energy. Now let's get started. Lowest on the EM spectrum are the extremely low frequency (ELF) electromagnetic waves. We then see the super low (SLF), ultra low (ULF) and very low (VLF) frequencies. Then low (LF), medium (MF) and high (HF) frequencies, then very high (VHF), ultra high (UHF), super high (SHF) and extremely high (EHF) frequencies. All these frequencies of electromagnetic radiation are basically categorized as "radio waves" because that's primarily how we use them, what we use them for - for communications. Certainly the higher end of those groups of frequencies finds applications for other things in addition to communications, and the microwave oven is just one example. Things get more interesting as we go higher. Beyond the microwaves, those frequencies which we use in cell phone and satellite communications (among other things) we have what is called the infrared (IR) region. It's broken down into (in order of increasing frequency, which we've been doing) the far infrared (FIR), mid infrared (MIR) and near infrared (NIR) portions of the spectrum. These are all frequencies just below the optical spectrum, and thermal energy is transmitted fairly effectively by them. From here, we move into the visible spectrum. We're familiar with the red, orange, yellow, green, blue and violet of the optical spectrum. We call this visible light, and we just about take it for granted, don't we? (At least sighted people with good color vision do.) Beyond that is the ultraviolet (UV) region, with the near ultraviolet (NUV) and extreme ultraviolet (EUV) ranges within it. All that's left is the soft and hard X-ray (SX and HX) regions, and then the gamma (Y) region at the very top end. We're familiar with the X-rays and what they do, and the gamma rays, generated by changes in atomic nuclei, are just the extreme top end of the spectrum. Use the link below to do some review and look at some different aspects of the electromagnetic spectrum. Continue your investigation and discover how we generate and use these different frequencies of electromagnetic energy. You'll find more surprises than you can count.
How does the color of a material affect how much light is reflected from it?
Light is nothing but electromagnetic waves. Earth receives energy from sun in the form of huge electromagnetic spectrum. In that spectrum human eye can sense only 0.4 micro m to 0.7 micro m wavelengths. 0.4 to 0.5 micro m waves appears as blue, 0.5 to 0.6 micro m waves appears as green and 0.6 to 0.7 micro m waves appears as red. N ow it depends upon material's surface roughness that which wavelength to be reflect. Water absorbs o.55 to 14 mm waves and reflects 0.4 to 0.55 mm waves, that's why water appears blue. Where as leaves of tree absorbs blue and red range of light waves, and reflects green light reflects from it. This reflectance of any material is known as SPECTRAL REFLECTANCE of that material.
What would happen to the redshift light if it moved in the opposite direction?
With the observer stationary, as an object emitting light moves away, each wave is emitted from a point farther away than the preceding wave and thus takes longer to reach the observer. Because of this Doppler effect (Proposed by Austrian Christian Doppler in 1849) the perceived wavelength is lengthened and therefore (in the visible spectrum) it appears at a lower frequency and is called a red shift (the lowest visible frequency being red). If the object moves in the opposite direction (towards the observer), each wave is emitted from a point closer to the observer than the preceding wave so the wavelength seems shorter and the frequency appears higher and moves towards that end of the spectrum. Although the highest visible frequency is violet, someone somewhere decided to call this Doppler effect the blue shift.
What colors are reflected by an object that appears black?
An object that appears black is absorbing all colors therefore none of the colors in the spectrum are being reflected.
Which light has the longest wavelength and the shortest frequency?
The longest visible wavelength of light appears red. "Longest wavelength" is equivalent to 'lowest frequency'.
Why infrared is named as infrared?
This has to do with the electromagnetic spectrum. Whether you know it or not, Gamma-rays, ultraviolet, X-rays, microwaves, visible light, infrared, and radio/tv waves are all the same thing, just in different doses. Infrared literally means "below-red", while ultraviolet means (beyond or above violet, or purple). With fore-said spectrum, visible lights highest frequency color appears to us as purple. At a slightly lower frequency we observe blue, then green, followed by yellow, and eventually red. In between each of these colors we observe intermediate colors like magenta, teal, orange and pink. At a frequency lower than, or below, red, we begin to enter the infrared area of the electromagnetic spectrum. Above purple, we enter the ultraviolet area of the electromagnetic spectrum.
What color of the electromagnetic spectrum has the lowest frequency?
The "Balmer Series" includes the visible spectrum of light from hydrogen ... fourwavelengths, 410 nm, 434 nm, 486 nm, and 656 nm, that correspond to emissionsof photons by electrons in excited states transitioning to the quantum level describedby the principal quantum number n equals 2. (There are also a number of ultravioletBalmer lines with wavelengths shorter than 400 nm.)Of the four visible Balmer lines, the one with the longest wavelength ... 656 nm ...is the one with the lowest energy per photon. It appears quite red.
Does the sun's energy travel by electromagnetic bands?
When you consider the fact that every form of common energy (infrared, normal light, ultraviolet, gammas, x-rays and so) are part of the electromagnetic spectrum the answer appears to be yes.
A spectral line that appears at a wavelength of 321 nm in the laboratory appears at a wavelength of 328 nm in the spectrum of a distant obect we say that the object's spectrum is?
A spectral line that appears at a wavelength of 321 nm in the laboratory appears at a wavelength of 328 nm in the spectrum of a distant object. We say that the object's spectrum is red shifted.
How does the width of the visible spectrum compare to the entire electromagnetic spectrum?
it is slap bang in the midde of the spectrum, with Ultra Violet light on one side, and Infra red on the other. In a vacuum it travels at the same speed as all of the others (the speed of light) UV has a shorter wavelength, and Infra red has a slightly longer one.
Why is light in the electromagnetic spectrum Is light a type of electromagnetic radiation But how does that work Light is not magnetic or is it?
Part of the electromagnetic spectrum can be detected by eye, and we call that bit "light". The thing about electromagnetic radiation is that a varying magnetic field causes a (varying) electric field (that's how power stations make electric current) and a varying electric field causes a (varying) magnetic field. So electromagnetic radiation is what you get when a varying electric field creates a varying magnetic field which in turn contributes the varying electric field. The whole thing then appears as bundled varying electric and magnetic field wave system which propagates at the velocity of light, That is why it is called electromagnetic. There are no magnetic poles or electric charges in it, and it can travel through a vacuum.
What spectrum is produced by a hot gas under low pressure and appears in a series of bright lines?
Emission Spectrum
What is the frequency of color?
Every color has a different frequency. That's why it appears to our eyes as a different color.
What do you call the spectrum of colours that sometimes appears in the sky?
um... an aurora?
What does the word frequent mean in math?
Frequency is the amount of times a variable appears in a set. For example, if the number three appears 5 times it's frequency is five.
What actually is red shift?
Whenever there is a relative motion between a source of light and observer then frequency appears to get changed. So colour would be changed. If both recede away from one another then there will be a apparent decrease in frequency and so colour has to move towards red end of visible spectrum. This is known as RED SHIFT
The portion of the visible spectrum that appears brightest to the human eye is around 560 nm in wavelenght which corresponds to yellow green. What is the frequency os 560 nm light?
5.36 times 1014 Hertz (535,344 GHz)
