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Microwaves can pass through the vacuum of space with ease. (They are subject to being bent by high gravitation like light, which is electromagnetic radiation like the microwave, but of a higher frequency.) Microwaves pass through air without a ton of loss. They can be absorbed or reflected (scattered) by different things in the air like airplanes, birds, weather systems, the usual suspects, including the air itself to some degree. The degree of interaction will depend on frequency and what is encountered. Generally, microwaves have pretty good punch through air. We use radar to look at planes and to image weather phenomenon. Microwave energy can penetrate water to some degree, but not all that far. Nothing like in air. Again, frequency determines how much (higher frequency makes for higher loss), as does what is (dissolved) in the water. The more conductive the water, the less the penetration. (Those planes that fly around over the ocean to hunt submarines don't use radar to look down through the water.) Microwaves are used in ground penetrating radar, so we know they go through earth, too. Not really well, though. The absorption and scattering are severe. Any moisture makes things really bad. Want to take a peek at what's below the markers in a graveyard? We should be able to do it. But don't even think about using it to look for oil in place of seismic technology. Microwaves won't pass through metal. A household microwave oven has a metal cavity (the cooking space) to confine the energy.
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∙ 16y ago
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How do microwave ovens allow light to escape but not microwaves?
Both visible light and microwave radiation are different variations of the same electromagnetic energy. Visible light has infinitesimally small wavelengths, and therefore it can pass through the screen holes. Microwave radiation has much larger wavelengths, and these wavelengths are too big to "fit" through the screen holes, and therefore the screen appears solid to the microwave radiation. The microwave radiation is therefore completely reflected by the screen.
What is a simple definition of microwave radiation?
microwave radiation is radiation that comes from microwaves
What type of radiation can easily pass through a human?
Gamma radiation
Can electromagnetic radiation pass through water?
Yes it can
Can microwave travel through vacuum?
A microwave is near the "red" side of the electromagnetic scale. All electromagnetic travels at the same rate. Light is a form of electromagnetic radiation which travels through a vacuum (space). Thereofore, being a part of electormagnetic radiation, microwaves will travel through a vacuum.
How do microwave ovens allow light to escape but not microwaves?
Both visible light and microwave radiation are different variations of the same electromagnetic energy. Visible light has infinitesimally small wavelengths, and therefore it can pass through the screen holes. Microwave radiation has much larger wavelengths, and these wavelengths are too big to "fit" through the screen holes, and therefore the screen appears solid to the microwave radiation. The microwave radiation is therefore completely reflected by the screen.
How microwave penatrates through ionosphere?
Microwave can pass through ionophere and only suffer some reflection
What is a simple definition of microwave radiation?
microwave radiation is radiation that comes from microwaves
What type of radiation can easily pass through a human?
Gamma radiation
What types of radiation does the universe allow to pass through?
Radiation can pass easily through space. It is the earth's atmosphere that protects us from dangerous levels.
Can microwaves in a microwave oven pass through a material?
Yes, microwaves inside of a microwave oven do indeed pass through a material - for example - a glass casserole dish or other cooking vessel - to reach the food inside the vessel to begin the cooking process. The microwaves also pass through paper, plastic and similar materials - that is why one can cook with such materials in a microwave oven. Microwaves however do not pass through metal objects, but rather often cause arching in a microwave oven, and thus can not be used in a microwave oven. Properly working microwave ovens do not allow the microwaves to pass from inside the oven to the outside world.
Which two types of radiation will pass through a sheet of card?
Gamma radiation
Can electromagnetic radiation pass through water?
Yes it can
How a campfire and microwave are examples of heat transfer through radiation?
Standing next to a campfire you will be warmed by its radiant heat (IR radiation).However a microwave cooker generates heat by boiling water inside the food, then the steam heats the food by a combination of conduction and convection (not radiation). There is some trivial heating of the microwave cooker's walls by IR radiation from the hot food, but this is so trivial you will not be able to measure it and the steam from the food will still condense on the cold walls (which is transfer through convection and warm them more than the IR radiation did).Note: microwave radiation is NOT thermal radiation (IR radiation) and must be transformed to become heat.
Can microwave travel through vacuum?
A microwave is near the "red" side of the electromagnetic scale. All electromagnetic travels at the same rate. Light is a form of electromagnetic radiation which travels through a vacuum (space). Thereofore, being a part of electormagnetic radiation, microwaves will travel through a vacuum.
Can man pass through the van allen belts?
A man can pass through the van allen belts. I believe the question you may be asking is, can a man safely pass through the van allen belts? The answer to that is maybe. The van allen radiation belts are filled with radiation and an unprotected person passing through it may be exposed to lethal amounts of radiation. Hence, manned space missions that pass through this must be adequately shielded against radiation.
Do microwave ovens use electromagnetic radiation?
Yes, microwave ovens use electromagnetic radiation.
