Electromagnetic Radiation

Depends on what TYPE of EM radiation. Also how much.

If the room is emitting infra-red radiation, that only means the room has a temperature.

If visible light, that only means you are not in the dark.

If low frequency radio waves, most likely nothing will happen.

Microwaves, ultra-violet light, and EM radiation of higher frequency can cause burns, damage to cells, and even death. But, in all cases (even gamma rays), it matters far more how MUCH of the radiation is being irradiated on you.

An optometrist needs to be an expert with light because understanding how light interacts with the eye is crucial for assessing vision and eye health. This knowledge helps in diagnosing conditions like cataracts, glaucoma, and macular degeneration, and in prescribing lenses or treatments to improve vision. Additionally, optometrists use specialized instruments that emit different types of light to examine the eye thoroughly.

Alpha particles and beta particles produce the least amount of scatter radiation compared to gamma rays or x-rays due to their larger size and lower energy. This makes them easier to shield against and reduces the risk of exposure to scatter radiation.

The most probable acute radiation syndrome subsyndrome with 400 RAD 2 hours after exposure is the hematopoietic subsyndrome, which affects the blood-forming tissues. At this dose and time frame, individuals may experience symptoms such as nausea, vomiting, and diarrhea.

When X-rays remove electrons from atoms, they are behaving as ionizing radiation. This means they have enough energy to remove electrons from atoms, creating charged particles (ions) that can interact with other atoms and molecules in the surrounding environment.

Since this a science question: we probably will never eliminate exposure to radiation. Besides the radiation we have caused, there is normal natural tradition. There is also something called background radiation which is part of our world.

Yes indeed they are ionizing radiation. Of particular importance to astronauts who are exposed to much more than those who are Earth bound. But even flight crew on high flying aircraft have to pay attention to this.

An electric cooker grill typically emits infrared radiation to cook food. This type of radiation heats the food by transferring energy through electromagnetic waves, similar to how the sun warms the Earth.

It's primary usage is to determine the nature of an induced EMF from changes in the magnetic flux through a circuit. However, you must use Faraday's Law (and a unit conversion factor) to determine the SIZE of such an EMF.

The EM spectrum ranges from very long radio waves at around 1000m or longer, to gamma rays at around 0.01 nanometers (nm). The visible part of the spectrum (for human eyes) ranges from 700 nm (red) to 400 nm (violet). One nanometer = 10-9 meter.

You may sometimes find reference to Angstroms, which used to be used for this range before SI was fully established. One Angstrom is 10-10 of a meter, ie 0.1 nm, so the range of visible light would be 7000 to 4000 Angstroms.

There is a nice diagram showing the visible range in the total spectrum, at Wikipedia

http://upload.wikimedia.org/wikipedia/commons/f/fl/EM_spectrum.svg

A radiologist is a medical specialist who is concerned with interpreting medical images obtained through electromagnetic radiation (X-rays, CT scans), ultrasound, and other imaging techniques. They play a key role in diagnosing and monitoring various health conditions by analyzing these images.

A non-radiation certificate is a document that confirms that a product or material does not emit any form of radiation. This certificate is often required for items that enter sensitive environments where radiation could be a concern, such as healthcare facilities or nuclear power plants.

No, it's the other way around; all of the wavelengths of ultraviolet fall on the electromagnetic spectrum.

"Electromagnetic" energy includes everything from "radio" to "gamma rays" and beyond. If you multiply the frequency in Hertz (or "cycles per second") times the wavelength in meters, it will always equal the speed of light, "c", which is (approximately) 30,000,000 meters per second. So "radio" is fairly long wavelength, and a low frequency; standard AM radio in the 1000 KHz band has a "wavelength" of about 30 meters. VHF ("Very High Frequency") TV signals (for those of you old enough to remember "over the air TV") was at about 150 megahertz, with a wavelength of 2 meters, while UHF TV ("Ultra-High Frequency") was still higher frequencies - and shorter wavelengths. "Radar" is in the millimeter wavelength; "Micro"-wave radiation is a much higher frequency, and a very "micro" wavelength. (The original brand name of "microwave oven" was called "Radar Range".)

There are three bands of "light" in there; the "heat" or "infra-red" light with frequencies lower than visible light (which are below the color red in the spectrum), then "visible" light that our eyes is sensitive to, and then "ultra-violet" or UV light, the spectrum above ("ultra") the violet spectrum of light.

Beyond that are X-rays, gamma rays and cosmic rays, and categories that haven't been named yet. This is _ALL_ "electromagnetic energy". Only a tiny sliver of this is "ultraviolet".

Radiation-feeding bacteria like Deinococcus radiodurans can withstand high levels of radiation but cannot completely eliminate it. Instead, they can repair their DNA more effectively than other organisms, making them useful in certain applications like bioremediation of radioactive waste.

MRI does not emit ionizing radiation like X-rays or CT scans. Instead, it uses a magnetic field and radio waves to create detailed images of the body's internal structures without exposing the patient to harmful radiation.

The highest energy photons are all found at the "top" of the electromagnetic spectrum. That's the end populated by photons with the shortest wavelengths (and, therefore, the shortest periods) and the highest frequencies. These photons, these extremely energetic electromagnetic waves, are generated within the nuclei of atoms and released during nuclear events. Subatomic particles actually generate the photons as they go through changes. Stars (most of them) can produce photons in these energies continuously, or in bursts. We frequently refer to photons of extreme energies as gamma rays. We can stimulate nuclei to generate these high energy photons in the nuclear physics laboratory, and it's usually done with some sort of nuclear accelerator. We take protons - or whole atomic nuclei - and speed them up to near light speed and slam these nuclear bullets into targets (or other particles). Photons of the highest energies are produced. As one can imagine, shielding for containment is a big concern, as these energetic photons will punch through steel, concrete and earth. Some links are provided.

X-rays have shorter wavelengths and higher energy than visible light. X-rays are used for medical imaging as they can penetrate tissues, while visible light is used for photography due to its ability to capture color and detail. X-rays are ionizing radiation, meaning they can damage biological tissues, so they are used with caution.

Well the metal would obviously attract a charged particle for its charge less surface. The only possible way would be placing a positively charged object on the other side of the negative charged object such that it could counter effect the coulombian pull on the negative charge due to the metal.

To keep the positive charge in place it would need to place it within oppositely charged electronic plates. This needs more amendments but thats another topic.

When a charged object touches metal, the end result is usually what is known as a static shock.

Yes, a prism can split light into its different types of radiation, such as visible light, ultraviolet light, and infrared light. This separation occurs because different wavelengths of light refract at different angles as they pass through the prism, creating a spectrum of colors.

The wavelength closest to violet on the electromagnetic spectrum is around 400-450 nanometers. This corresponds to the range of wavelengths that our eyes perceive as violet light.

No, gamma rays have the shortest wavelength.

Yes, but in the case of solid objects that possess heat it is more proper to refer to them as black body radiators.

The color with the shortest wavelength is violet. It has the highest frequency and energy among the visible colors.

... is an inherently meaningless term; no matter how long a wavelength you name, I can choose one that's longer ("infinity" is not a real wavelength, and for any non-infinite number, there's always a larger one).