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Electromagnetic Radiation

Electromagnetic (EM) radiation is the energy transmitted through space or a material medium in the form of electromagnetic waves. The frequency range of such waves is tremendous, and is shown by the electromagnetic spectrum. These waves include radio waves, microwaves, infrared waves, visible light waves, ultraviolet (UV) waves, X-rays, and gamma rays.

2,156 Questions

Would it make sense to place an X-ray or gamma ray telescope on a mountain top?

Yes, placing an X-ray or gamma ray telescope on a mountain top can reduce atmospheric interference and provide clearer observations due to the thinner atmosphere at higher altitudes. This can improve the sensitivity and accuracy of the telescope in detecting these high-energy emissions from space.

What if your skin temperature is about 300K in what region of the electromagnetic spectrum do you emit thermal radiation most intensely?

As

lemda{max} T = constant = 2898 u m K

lemda{max} = 2898 u m K / T

lemda{max} = 2898 u m K / 3OOk

lemda{max} = 2898 u m K / 3OO

lemda{max} = 9.66 u m

in infrared region

What is the organization of the solar system?

The solar system is not 'organised'. It conforms to a structure in which the massive central body (the sun) holds in its gravitational pull a large number of smaller bodies. These bodies vary widely in dimension, mass, albedo and material constituency as well as in their orbits. However the main planetary orbits are roughly aligned with the ecliptic. Copernicus, the Polish astronomer believed there to be a mathematical formulary for the distances from the sun of its major satellites. Although this fell out of favour for centuries, there has been shown to be some correlation between his concept and factual measurements.

Rainbow of colors that make up white light?

All the colors of the visible spectrum make up white light.*

* White light is a balance of all the wavelengths (colors) of visible light: Red, Orange, Yellow, Green, Blue, Indigo, and Violet, the same colors and order of rainbows.

What is the frequency of an electromagnetic wave that has a wavelength of 300000 kilometers?

The formula related to frequency and wavelength is

Wavelength = 300000000 / Frequency (f)

Wavelength = 300000000 / 30000000000

Wavelength = 1/100

Wavelength = 0.01 meter

OR

Wavelength = 10 milimeter

Which ray does not belong in the electromagnetic spectrum?

Sound waves do not belong in the electromagnetic spectrum. Sound waves are mechanical waves that require a medium (such as air or water) to travel through, unlike the electromagnetic waves that can travel through a vacuum.

Where to find zirconium oxide visible spectrum?

Zirconium oxide is widely available for purchase from scientific supply companies or online retailers that specialize in laboratory chemicals. It is typically used as a ceramic material in high-temperature applications rather than for its visible spectrum properties. If you are specifically looking for information about the visible spectrum properties of zirconium oxide, you may need to consult scientific literature or databases.

When was ultraviolet light founded?

Ultraviolet Light is part of the electromagnet spectrum, with a frequency of between 10 15 and 10 16 Hz. It has a typical wavelength of between 10 -7 and 10 -8m.

UV light was discovered in 1801 by Johann Ritter

What form of radiation can your eyes detect?

Your eyes can detect visible light, which is a form of electromagnetic radiation that falls within a specific range of wavelengths. This is why your eyes are sensitive to colors and brightness levels in the environment.

The shortest way to explain electromagnetic spectrum?

The electromagnetic spectrum is the range of possible frequencies emitted from the sun. They go in order of highest frequency to the lowest; Gamma has the highest frequency, after that comes X-ray, Ultra Violet, Visible light, INFERRed, Microwaves and finally radio waves with the lowest frequency.

Gamma rays are normally produced by decay of high energy nuclei or by the hottest and most energetic objects in the universe, there also are some astronomical processes that can also create gamma rays.

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Extra Stuff:

Gamma rays are good at killing of cells so they are used to kill of cancer cells in chemotherapy. They are also used to sterilize hospital equipment and Kill harmful bacteria.

The advantages of gamma rays are:

· Scientists can use them to learn about the universe, telescopes and detectors have been sent to space since 1960

· They can help stop cancer

The disadvantages of gamma rays are:

· An overdose could give you radiation sickness.

· Too much could lead to genetic mutation.

· Many doses can lead to death.

The advantages of gamma rays to X-Rays are:

· No electrical or water supplies are needed

· The Equipment is smaller and lighter

· It Is much more portable

· The Equipment is simpler and stronger

The disadvantages of gamma compared to X-ray are:

· Poorer quality radiographs

· The Exposure times can sometimes be longer

· The Sources need replacing

· The Radiation cannot be switched off

· Remote handling is necessary.

What forms the ozone layer protecting us from UV radiation?

The ozone layer is predominantly formed by the interaction of oxygen molecules with UV radiation in the stratosphere. Ultraviolet radiation breaks down oxygen molecules into individual oxygen atoms, which then bond with other oxygen molecules to form ozone (O3). This ozone layer helps to absorb and block a significant portion of the sun's harmful UV radiation from reaching the Earth's surface.

What electromagnetic waves have a wavelength shorter that a single water molecule?

Your comparison attempt is confusing. Water molecules don't have 'waves' by themselves. The ocean has waves, H2O does not. We use the behavior of ocean and sound waves to determine the behavior and makeup of light waves. Humans can only see a portion of the existing electromagnetic spectrum.

X-rays and Gamma rays have the shortest wavelengths. Radio waves have the longest.

To scatter a beam of radiation a particle must be smaller in size than the wavelength of the radiation involved?

Yes, scattering of radiation occurs when the size of the particle is smaller than the wavelength of the radiation. This phenomenon causes the radiation to interact with the particles, changing its direction and intensity. This principle is commonly observed in processes like Rayleigh scattering in the Earth's atmosphere.

In what portion of the electromagnetic spectrum does the sun emit most energy?

The sun's radiation comes as 45 percent visible light. 40 percent infared, and the remainder as Ultraviolet.

This is why the Sun is damaging to our eyes as well as skin while giving us the light we need.

Why you see a distant event before you hear it?

Light travels much faster than sound - about a million times faster. When an event happens at a distance, light reaches your eyes almost instantly, allowing you to see it first. Sound, on the other hand, travels much slower, taking some time to reach your ears, which is why you hear the event after seeing it.

Is the color spectrum simply a small segment of the electromagnetic spectrum?

Yes, visible light (the color spectrum) is a tiny range of the full range of electromagnetic waves. In the related Wikipedia link, there is a picture that shows the colors 'crammed in' to a small range of the spectrum.

Who was the unit for measuring radio waves named for?

The unit for measuring radio waves, the hertz (Hz), is named after German physicist Heinrich Hertz, who made significant contributions to the study of electromagnetism and radio waves in the late 19th century.

What qualities describe how electromagnetic is arranged in the spectrum?

The electromagnetic spectrum is arranged by wavelength, with shorter wavelengths on one end and longer wavelengths on the other end. It encompasses a range of electromagnetic waves, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. The spectrum also organizes these waves based on their energy, frequency, and applications.

Why are gamma rays and X-rays harmful to students?

Gamma rays and X-rays are harmful to students because they are forms of ionizing radiation that can penetrate the body, damaging cells and DNA. This can increase the risk of cancer and other health problems, depending on the level of exposure. It is important for students to limit their exposure to these types of radiation to protect their health.

What are 3 forms of Electromagnetic Radiation with a wavelength greater than visible light?

Infrared is one, radio waves are another and many include microwaves as a third but microwaves are used for communications and are a form of radio wave. Wavelengths between radio waves and infrared are called TeraHertz radiation. Radio waves start at very long wavelengths LF or low frequency defined as 30kHz to 300kHz, MF or medium frequency from 300kHz to 3MHz, HF or high frequency from 3MHz to 30MHz, VHF or very high frequency from 30MHz to 300MHz, UHF or ultra high frequency from 300MHz to 3GHz and SHF from 3GHz to 30GHz. After that they are normally just called microwaves. Many microwave ovens operate near 2.4GHz which is only UHF.

Which wavelength range in the electromagnetic spectrum has been the most fruitful in the search for organic molecules in space?

The radio wavelength range has been the most fruitful in the search for organic molecules in space. Radio telescopes have detected complex organic molecules in regions such as star-forming regions, comets, and interstellar clouds, providing valuable insights into the presence and chemistry of organic molecules in space.

What is debye shielding?

Debye shielding is a phenomenon in which charged particles are shielded by free charges in a plasma, reducing the overall electric field within the plasma. This shielding effect occurs over a characteristic distance known as the Debye length, beyond which the electric field from the charged particles is significantly weakened. It plays a crucial role in understanding the behavior of plasmas in various applications, such as in fusion research and semiconductor technology.

What are the three types of radiation of the invisible spectrum that have wave lenghts longer than visible light?

The three types of radiation with wavelengths longer than visible light are infrared radiation, microwaves, and radio waves. These forms of radiation are used in various technologies such as thermal imaging, cooking, and telecommunications.

Why did German scientist Wilhelm Roentgem name the invisible rays he discovered X -rays?

X-radiation (composed of X-rays) is a form of electromagnetic radiation. X-rays have a wavelength in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3×1016 Hz to 3×1019 Hz) and energies in the range 120 eV to 120 keV. They are shorter in wavelength than UV rays and longer than gamma rays. In many languages, X-radiation is called Röntgen radiation, after Wilhelm Conrad Röntgen, who is usually credited as its discoverer, and who had named it X-radiation to signify an unknown type of radiation.