Electromagnetic Radiation

The black absorbs radiation and reflects little of it. This causes black objects to get warm quickly. White reflects much of the radiation that hits it, and it doesn't warm as rapidly. This is the cause for black objects getting hot quickly in the sun, and white objects to warm less rapidly.

Ultraviolet radiation is the range of electromagnetic waves with frequencies higher than violet on the visible spectrum. It has shorter wavelengths and higher energy than visible light. Exposure to UV radiation can have harmful effects on living organisms.

The longest radio wave used for communication is around 3 millimeters long.

The shortest visible wavelength of light is around 0.0004 millimeters long.

The radiation emitted by Earth's surface has longer wavelengths compared to solar radiation. Earth emits long-wave radiation in the infrared range, while solar radiation consists of shorter-wave radiation in the visible and ultraviolet ranges.

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.

Most likely not.

Light is made up of photons, and even photons have mass..Thus light is a particle as particles are mass.

But to confuse you, even though light = photons & photons = particle & particle = mass; the photons also act as a wave.

Which is rather incredible, because it means that a mass also acts as a wave.

No, not all molecules absorb electromagnetic radiation at a distinct frequency. The ability of a molecule to absorb radiation depends on its structure and the energy levels of its electrons. Molecules with specific functional groups or electronic configurations exhibit absorption at characteristic frequencies.

No, ultraviolet light has a shorter wavelength than visible light. Visible light falls within the electromagnetic spectrum with wavelengths ranging from approximately 400 to 700 nanometers, while ultraviolet light has shorter wavelengths below 400 nanometers.

Visible light is found in the electromagnetic spectrum between infrared and ultraviolet light, with wavelengths ranging from about 400 to 700 nanometers. It is the range of electromagnetic radiation that is visible to the human eye.

1. Ultraviolet radiation: has shorter wavelengths than visible light.
2. X-rays: have even shorter wavelengths than ultraviolet radiation.
3. Gamma rays: have the shortest wavelengths and highest energy among electromagnetic radiation.

Radio waves have the lowest frequency in all of the electromagnetic spectrum. The next higher frequency energy is microwave, visible light including ultraviolet, infrared, X-ray, then gamma ray

No sure what you mean by "the reason." Electromagnetic waves exist in our Universe. Our eyes are able to detect a small fraction of the spectrum of these waves, and we call that small fraction of the spectrum, "light."

In other words, the reason that light is an EM wave is because it IS.

A single wave cannot represent a particle because waves and particles have different properties that cannot be fully described by the same model. While particles have a definite location and momentum, waves exhibit properties like interference and diffraction which are not compatible with the concept of a localized particle. This led to the development of wave-particle duality in quantum mechanics where particles exhibit both particle-like and wave-like behaviors.

X-Rays are a type of electromagnetic waves. and they play an important role in dentistry and orthopedic investigation. Many individuals undergo an X-ray to allow medical professionals to gain a better idea of what is going on inside someone so appropriate treatment can be prescribed and provided.

We also see gamma radiation, a higher energy form of electromagnetic radiation, used in treating some types of cancer. When we hear that someone has undergone "radiation therapy" in an attempt to stop or control cancer, the gamma ray source is often what is being referred to. Other types of radiation can be used, but gamma ray treatments are still common.

Electromagnetic spectrum is the range of wavellengths of different radiations reflected or emitted by objects with temperature above 0 k. Remote sensing technology make use of such radiations of certain wavelength in EM spectrum to distinguish different objects as different object radiates differently.

Yes, the Particle Model can explain refraction by considering light as a stream of particles (photons) that change speed and direction when passing through different mediums, causing the bending of light rays.

GALEX detects ultraviolet (UV) radiation from celestial objects in space. It is specifically designed to study the UV emission from stars, galaxies, and other astronomical sources.

To calculate the energy of X-ray photons, we use the formula E = hc/λ, where h is Planck's constant (6.626 x 10^-34 J s), c is the speed of light (3 x 10^8 m/s), and λ is the wavelength of the photon in meters.

First, we convert the wavelength from nanometers to meters: 0.135 nm = 0.135 x 10^-9 m.

Now we can plug these values into the formula: E = (6.626 x 10^-34 J s * 3 x 10^8 m/s) / (0.135 x 10^-9 m) = 4.65 x 10^-15 J per photon.

It depends on the experiment, of course, but a discharge tube contains ionized atoms, while an incandescent simply has glowing metal. The former is, for most experiments, a lot more interesting.

In our Universe, EM radiation can only come in discrete chunks called "photons." The energy of each individual photon depends on the frequency of the EM radiation. Frequency depends on wavelength (or vice-versa): the shorter the wavelength, the higher the frequency. Thus, short wavelength photons have more energy. That's just how our Universe operates, whether or not we like it.

A vibrating speaker uses electrical energy to power its internal components, which in turn produce sound energy through the vibration of the speaker cone. The sound energy is then transferred as mechanical energy through the air as sound waves.

As the saying goes, "Do not try this at home!"

UV light, that would be powerful enough to kill germs in water, will also irreversibly destroy the retinae of your eyes -- and do so without any pain or symptoms prior to loss of sight!

Better to just buy a Steri-pen, which has the safety features necessary to protect your eye sight.

A kidney scanner uses gamma radiation because it has higher penetration ability, allowing it to reach and image deep structures inside the body like the kidneys. Beta and alpha radiation have lower penetration abilities and would not be suitable for this purpose. Additionally, gamma radiation is less likely to be absorbed by surrounding tissues, providing clearer images of the kidneys.

1) Photo-electric effect.

2) Spectrum of black-body radiation.

3) Compton scattering spectrum.

4) Disappearence of interference pattern with two slits, if a way is made to determine which slit the light went through.

All three of these can be easily explained by assuming that light is composed of photons, and that the energy of those photons is proportional to the frequency of the light. None of three can be explained by assuming light is purely an electro-magnetic wave.