answersLogoWhite

0

🧪

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

What rays are blocked by sunglasses?

Glass lenses tend to block infra-red naturally. The tinting of the lens will block some percentage of the visible spectrum but some tinting is designed to bias towards blocking more strongly in the blue end of the spectrum. Some lens formulations will block ultra-violet. There is no simple answer because there are many different types of lenses and formulations.

What is the frequency range of guided rocket?

Guided rockets typically operate within the radio frequency range, around 2-18 GHz. This range allows for effective communication between the rocket and the guidance system, enabling accurate control and targeting of the rocket during flight.

What kind of Wave is an electromagnetic wave how fast does it travel?

An electromagnetic wave is a wave with electric component and magnetic component.

In free space (vacuum), an electromagnetic wave travels with the speed of light, that is 3x10^8 m/s.

In fact, light is also an electromagnetic wave.

List the colors that make up white light and their appropriate wavelengths?

I believe that this is true and this needs to be corrected if it is not. White light is the effect of the combination of ALL frequencies of visible light, it is not the combination of a few specific frequencies of light. You can come close to producing white light even using rather crude means, by taking a child's construction paper colored red orange yellow green and blue and arranging roughly equally sized wedges of them onto a spinning disk. But actual white light is ALL frequencies blended together. It is roughly analogous to static or 'white noise', which gets its name from the concept.

A prism, for example, will not break sunlight into extremely discrete narrow bands of color, but will give an even spread of light varying in color from red to dark blue.

What is inferred radiation?

Inferred radiation refers to the transfer of heat energy in the form of electromagnetic waves without the need for a medium like air or water. This process occurs through the emission and absorption of infrared radiation by objects that have a temperature above absolute zero. Examples include the warming of the Earth by the sun through infrared radiation.

Radio waves have longer wavelengths than xrays?

Yes, radio waves have longer wavelengths (measured in meters) and lower frequencies compared to x-rays, which have shorter wavelengths (measured in nanometers) and higher frequencies. Radio waves are used for communication and broadcasting, while x-rays are used in medical imaging and security screening due to their ability to penetrate solid objects.

Where was radiation created?

Radiation is a natural phenomenon that has existed since the creation of the universe. It can be found in various forms throughout the universe, including cosmic radiation from outer space, radioactive decay in rocks and minerals on Earth, and electromagnetic radiation emitted by stars and other celestial bodies.

Which are more energetic photons of UV-A radiation or photons of UV-B radiation?

Photons of UV-B radiation are more energetic than photons of UV-A radiation. UV-B radiation has shorter wavelengths and higher energy levels compared to UV-A radiation. UV-B radiation is classified as potentially harmful to human health, while UV-A radiation is less energetic and is more commonly associated with tanning and aging effects on the skin.

Why does the light of a bulb seem to be fading when sunlight is coming through window?

What is being observed in a situation where a light bulb seems less bright when the sun is shining through a window is based on the way the eye works. Let's take a moment and look at the issues.

When a light bulb is on, we see the light and our brain "assigns" a "brightness" to the lamp. If it's a bright, sunny day and the lamp is near a window, all bets are off. The voltage to the lamp is the same, and the lamp is still emitting all the light (photomic energy) that it has been. But the "extra" light from the sun that streams through the window will "overload" the eye to a certain extent. The light will not seem as bright, and it is all because of the way the eye works. It has nothing to do with the lamp.

Are gamma rays the cure for every disease?

No, gamma rays are not a cure for every disease. While gamma rays can be used in certain medical treatments, they are typically not a first-line or widespread therapy for most diseases. Treatment options depend on the specific disease and should be determined through consultation with healthcare professionals.

Type B packages must be able to meet Type A requirements and also withstand the effects of?

Type B packages must be able to meet Type A requirements and also withstand the effects of more severe transportation conditions, such as higher levels of radiation. This means that Type B packages must provide additional protection to ensure the safe transportation of radioactive materials.

What are some molecules that absorb short wavelength light in the atmosphere?

actually the water molecules have the tendency to absorb the EMW waves of a certain frequency normally called to be infrared rays of a wave length below micro waves

this the reason for occurrence of green house effect in earth greater this effect leads to global warming

How do different materials affect light and sound waves?

Light slows as it enters material with a higher density whereas sound waves speed up in materials of higher density.

Light bends towards the "normal" as it passes from a less dense medium to a higher density medium ie air into glass.

Both sound and light can be reflected from surfaces.

Which is a property of light waves but not sound waves?

why cannot it be both? by definition, amplititude is the extreme range of fluctuating quantity. swing range of a pendulum, current flow,bla,bla,bla. amplitude MODULATION is in reference to radio waves with regards to signal RANGE ie: AM Radio- amplitude modulation am bounces and the range of frequency is modulated within the extreme band withs of the wave.

What safety precautions should you take with a microwave?

With a microwave oven, the major safety precautions unique to the device are to ensure that metals are never placed inside and to prevent any metal item from worming its way through the gasketing and creating a wave path from inside to outside the oven. Check the door interlock from time to time to be sure that the unit shuts off immediately if the door latch is released.

Beyond that, the safety precautions are the same as for any small, electrical appliance:

  • Mack sure the cord is in good condition
  • Don't operate it in water or when wet

Is radiation breathed in?

No, radiation travels in straight lines (except for charged particle radiation in electromagnetic fields, which follows arc shaped paths).

However you can breath in matter that is emitting radiation.

Where is visible light located on the electromagnetic spectrum?

to the far right

And since your reading this, have you ever watch that episode of Regular show where Mordecai and Rigby enter a rap battle with the people from Loiter Squad? I like that one.

:D

What are the categories of the electromagnetic spectrum?

The categories of the electromagnetic spectrum include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. These categories are defined based on the wavelength and frequency of the electromagnetic waves.

What would be different if light did not travel in a straight line?

simple.. there will be no life.

It will be dark.

While true it would be dark, don't tell the many thousands of organisms hanging around hydrothermal vents at the bottom of the oceans [where there is no light] that they aren't alive.

Why can radiation kill us?

Radiation delivers lethal damage to cells in the body by destroying DNA and dissociating proteins along with other biochemical substances within those cells. It kills on the cellular level, and there is no medical intervention for extremely high doses of radiation. The damage is done in seconds, and a period of evolving tissue death follows lasting weeks or even just days.

The speed of light with a refraction index of 1.5 is?

The speed of light in a medium can be calculated by dividing the speed of light in a vacuum (299,792,458 meters per second) by the refractive index of the medium. Therefore, in a medium with a refractive index of 1.5, the speed of light would be approximately 199,861,639 meters per second.

Visible light contains various wave lengths what are the wavelengths in nanometers?

Visible light wavelengths range from approximately 400 to 700 nanometers. This corresponds to violet light at the shortest wavelengths and red light at the longest wavelengths in the visible spectrum.

Why do you use alpha radiation?

Alpha radiation is used in various applications, such as smoke detectors and some types of cancer treatment, because it is highly ionizing and has a short range in tissue. This makes it effective in targeting and destroying specific cells while minimizing damage to surrounding healthy tissue.

What emit radiation?

Common sources of radiation include the sun, nuclear power plants, medical imaging devices such as X-rays and CT scans, radioactive materials used in industry and research, and naturally occurring elements like uranium and radon gas.

Where does radiation happen?

The sun, arc welding, "black lights" (looking fro fluorescence).

[inside florescent lights - but its blocked by the surface of the bulbs.)