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Why is it important that the walls and door of a microwave oven reflect the microwave radiation?
Wiki User
∙ 12y ago
reflects
Wiki User
∙ 12y ago
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What is the name of the process by which energy reaches the walls of the house directly from the sun?
Radiation
How can the structure of the vacuum flask minimise energy transfer by conduction convection and radiation?
The flask has a double wall, with no air between the two walls (vacuum)- conduction. The walls are highly reflective silver- radiation. the flask has a small beck that is closed by a stopper or cap-convection.
How does a thermos flask reduce heat loss by radiation?
Vaccum between thermos walls does NOT prevent radiation, however the other forms of heat transfer(convection and conduction) are more or less eliminated. Radiation effect of heat transfer may be reduced by applying a layer of reflective material inside the bootles - to reflect the emmision back inwards.
Describe a place in which you would expect to hear echoes?
A cave because the walls would reflect the sound wave causing an echo to form- Nour Khodr
How does heat travel through your home?
Heat energy travels in three ways: convection, radiation, and conduction. The radiation from the sun heats the air around the house, making the walls warm. Than, the walls warm up the air inside the house. The sun rays go through the windows, which will trap heat. The heated air will rise, and stay there unless there is an escape route for it.
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.
Which is the only type of radiation that might penetrate the walls of a house?
AM radio wavesshortwave radio wavesVHF radio wavesUHF radio wavesmicrowavesx-raysgamma raysneutron radiationneutrinossecondary cosmic raysetc.For the electromagnetic spectrum the only bands that conventional walls are opaque to are infrared, visible, and ultraviolet light. If the walls have lots of metal in them then they may also be opaque to parts or all of the radio wave and microwave bands.For particulate radiation the walls will be opaque to all charged particles, unless they are at very high energy (e.g. cosmic rays).
If a house has shiny walls will the heat reflect of the walls and stay in the house?
yes it will because it is shiny
Do green walls absorb green light and reflect all other light?
Its the other way around. Green walls only reflect green, and that's how we see them as green walls. My answer could change depending on what type of green it is.
What is vibration of the blood vessel walls that reflect heart rate?
Pulse
Why do walls amplify sound?
Hard reflexions from walls reflect the sound and add it to the direct sound. That gives amplification of the total sound.
What is the name of the process by which energy reaches the walls of the house directly from the sun?
Radiation
What is the name of the process by which energy reaches walls of the house directly from the sun?
Radiation
Why was it important for the adobe mission walls to be built on rocks?
It was important for the mission walls to be built on rocks because so the walls could be stable.
Why is lead used in the walls of x ray rooms?
lead can stop the radiation from getting outside the room lead can stop the radiation from getting outside the room
What is a body block?
A blackbody is a perfect absorber and emiter of radiation, It is an idealised thing, a perfect blackbody can not actually exist. If you Imagine a box with a small hole in it, radiation enters through the hole an procedes to bounce around of the interior walls of the box until it has all been absorbed. The walls then emit radiation, the spectrum of the radiation (The amount of radiation at each frequency) depends only on the temperature. Strangely one of the best examples of a black body in nature is the sun!
Why are cell walls important to people?
Cell walls only exist in plants.
