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True or False The electromagnetic spectrum is a collection of several types of electromagnetic radiation?
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∙ 7y ago
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Wiki User
∙ 7y ago
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The electromagnetic spectrum is made up of?
Electromagnetic spectrum is made up of wide range of frequencies which range from few Hertz (cycles per second) to several TeraHertz. In most books, electromagnetic spectrum is marked with help of wavelengths. Wavelength is measured by speed of light divided by the frequency.
Can energy cannot be felt but can be seen?
Yes. There are several forms of energy that can be felt, or in other words, detected by our senses. For example, infrared radiation is emitted from warm objects and this can be detected by temperator receptors on our skin. Infrared radiation is due to certain wavelengths of the electromagnetic spectrum and would therefore be a form of energy, electromagnetic energy. The photoreceptors in our eyes are not able to detect infrared wavelengths of light.
What does radiate mean?
Radiation is the process by which energy is emitted from a source and propagated through the surrounding medium, or the energy involved in this process. Radiation consists of a flow of atomic or subatomic particles or of waves. Familiar examples are light (a form of electromagnetic radiation) and sound (a form of acoustic radiation). Both electromagnetic and acoustic radiation can be described as waves with a range of frequencies and intensities. Electromagnetic radiation is also often treated as discrete packets of energy, called photons. All matter is constantly bombarded by radiation from cosmic and terrestrial sources, and radioactive elements emit several types of radiation .
The type of radioactive particle that can be stopped by a sheet of paper is the what?
There are different kinds of radiation and different kinds of paper. For the electromagnetic radiation, every material has "transparency windows". Sunlight is the electromagnetic radiation, too. As you can tell, some paper is transparent to it and some not. If we consider the particles radiation, then the particles nature and energy play major roles. Some heavy particles with low energy can be scattered by even relatively light obstacles. Whereas such particles as neutrino easily go through the entire Earth. alpha particles can be stopped by thin objects such as paper. beta particles can be stopped by thicker objects suck as plastic or aluminum foil gamma radiation can be stopped by several feet thick of concrete and/or lead
What can radiation do to the human body?
That depends what radiation - there are several types. For example, visible light, in the usual quantities, does no harm at all. A very intense light, or other types of radiation, can be very harmful indeed.That depends what radiation - there are several types. For example, visible light, in the usual quantities, does no harm at all. A very intense light, or other types of radiation, can be very harmful indeed.That depends what radiation - there are several types. For example, visible light, in the usual quantities, does no harm at all. A very intense light, or other types of radiation, can be very harmful indeed.That depends what radiation - there are several types. For example, visible light, in the usual quantities, does no harm at all. A very intense light, or other types of radiation, can be very harmful indeed.
What does the sun have to do with the electromagnetic spectrum?
Hydrogen nuclei undergo fusion within the Sun and this reaction releases energy as 0.3% of the hydrogen's mass is converted into energy. This energy spans several bands of the electromagnetic spectrum, most of it is in the UV-Vis portion. For more information look up blackbody radiation.
The electromagnetic spectrum is made up of?
Electromagnetic spectrum is made up of wide range of frequencies which range from few Hertz (cycles per second) to several TeraHertz. In most books, electromagnetic spectrum is marked with help of wavelengths. Wavelength is measured by speed of light divided by the frequency.
Can energy cannot be felt but can be seen?
Yes. There are several forms of energy that can be felt, or in other words, detected by our senses. For example, infrared radiation is emitted from warm objects and this can be detected by temperator receptors on our skin. Infrared radiation is due to certain wavelengths of the electromagnetic spectrum and would therefore be a form of energy, electromagnetic energy. The photoreceptors in our eyes are not able to detect infrared wavelengths of light.
What has the longest wavelength-light waves x-rays or radio waves?
Radio Waves are in the lower end of the electromagnetic spectrum and have wavelengths between several hundred feet (AM Radio) to fractions of an inch (Microwave communications). X-Rays are high energy photons at the upper end of the electromagnetic spectrum, with wavelengths shorter than visible light, measured in nanometers to picometers. Color wise, Red is the longest visible, while Violet is the shortest wavelength of visible light. There are many graphical charts of the electromagnetic spectrum that show where the various waves fit in relation to each other, these can be found on an internet image search.
What types of energy are being released from the globe?
Several types of electromagnetic radiation from below the AM radio band up through the visible,
How does a stellar spectroscope work?
Stellar spectroscopes work by collecting radiation from an astronomical object. Studying the electromagnetic spectrum can allow you to work out its temperature, chemical composition and other characteristics.
When was infrared discovered?
According to NASA infrared radiation was first discovered in 1800, by a British astronomer named William Herschel. In an experiment to measure the difference in temperature between the colors in the visible spectrum, he placed thermometers in the path of light within each color of the visible spectrum. He observed an increase in temperature from blue to red, including an even warmer temperature measurement just beyond the red end of the visible spectrum.
Which is the only type of radiation that might penetrate the walls of a house?
AM radio wavesshortwave radio wavesVHF radio wavesUHF radio wavesmicrowavesx-raysgamma raysneutron radiationneutrinossecondary cosmic raysetc.For the electromagnetic spectrum the only bands that conventional walls are opaque to are infrared, visible, and ultraviolet light. If the walls have lots of metal in them then they may also be opaque to parts or all of the radio wave and microwave bands.For particulate radiation the walls will be opaque to all charged particles, unless they are at very high energy (e.g. cosmic rays).
What does radiate mean?
Radiation is the process by which energy is emitted from a source and propagated through the surrounding medium, or the energy involved in this process. Radiation consists of a flow of atomic or subatomic particles or of waves. Familiar examples are light (a form of electromagnetic radiation) and sound (a form of acoustic radiation). Both electromagnetic and acoustic radiation can be described as waves with a range of frequencies and intensities. Electromagnetic radiation is also often treated as discrete packets of energy, called photons. All matter is constantly bombarded by radiation from cosmic and terrestrial sources, and radioactive elements emit several types of radiation .
Do led has radiation?
LEDs can also be designed to emit light in the infrared spectrum, but the radiation emitted is very slight and only has limited use, such as communication between electronic devices using infrared ports and signals. Since the diodes are so small, they cannot easily be used to generate large amounts of heat. Other LEDs fall in the visible light spectrum, with some nearing ultraviolet light.
What hazards are associated with the use of spectrum tubes?
Several of the salt solutions are toxic. Handling electrical apparatus presents a potential hazard. Some ultraviolet radiation may be emitted from emission tubes. Handling hot spectrum tubes immediately after the power is turned off can lead to burns.
What is the meaning of visible light?
The scientific definition of light is--a wavelength of electromagnetic radiation between 3,800 and 7,600 angstrom units to which the retina of the eye is sensitive and a part of the electromagnetic spectrum the brain interprets. That physical response of our eyes reacting to light, long before it could be defined as retina and wavelength, has engendered a light-defined vocabulary over centuries. For example, when we talk about the physical properties of light, we talk of, "the light at the end of the tunnel," "by the light of the moon."
