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A matt black surface is best. A theoretical perfect radiator is called a black body.
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When does the earth emit terrestrial radiation?
Terrestrial radiation refers to heat emitted from the earth's atmosphere and surface.
Why is radiation of heat larger in a black surface than a white surface?
A black surface absorbs the heat radiation and a white surface reflects the heat radiation
What happens to the amount of radiation a radioactive substance emits when you heat it up or cool it down?
when you heat up or cool down radioactive substances, nothing changes how much radiation it emits.
Does a hot iron emit infrared?
yes all heat energy is infrared radiation. so as it emits heat it is emitting infrared radiation.
What type of radiation does the earth emit?
Its the thermal energy that the Earth emits. Radiation is essentially another word for heat. There is also solar radiation which is simply the heat from the sun. The Earth actually emits far less thermal energy than what is taken in from by the sun and absorbed into the atmosphere. On the other hand there are planets like Jupiter whose surface temperature is mostly comprised of heat from thermal energy instead of solar radiation.
When does the earth emit terrestrial radiation?
Terrestrial radiation refers to heat emitted from the earth's atmosphere and surface.
Why is radiation of heat larger in a black surface than a white surface?
A black surface absorbs the heat radiation and a white surface reflects the heat radiation
What happens to the amount of radiation a radioactive substance emits when you heat it up or cool it down?
when you heat up or cool down radioactive substances, nothing changes how much radiation it emits.
Does a hot iron emit infrared?
yes all heat energy is infrared radiation. so as it emits heat it is emitting infrared radiation.
How do heat transfers by radiation?
Heat transfer by radiation occurs in the infra-red part of the electromagnetic wave spectrum, because matter emits and absorbs radiation with that range of frequencies.
Why do you not need a substance for heat transfer?
Any object emits electromagnetic radiation (heat radiation, usually infrared), according to its temperature. This can travel in empty space.
What are the factors that increase the rate at which an object emits thermal radiation?
The hotter the object the more it radiates. The blacker the surface the more it radiates. The surrounds only affect the total loss of heat from the object, not the actual rate the object emits thermal radiation. From my imperfect memory I seem to recall that the rate an object looses heat by radiation to its environment is proportional to the forth power of the difference in temperature between the object and the environment.
What type of radiation does the earth emit?
Its the thermal energy that the Earth emits. Radiation is essentially another word for heat. There is also solar radiation which is simply the heat from the sun. The Earth actually emits far less thermal energy than what is taken in from by the sun and absorbed into the atmosphere. On the other hand there are planets like Jupiter whose surface temperature is mostly comprised of heat from thermal energy instead of solar radiation.
Why is Earth's atmosphere mainly heated from the ground up?
Solar radiation mostly passes through the atmosphere without heating it, due to its wavelength. It does not pass through the ground, however, and it heats the ground. The ground emits radiation at a wavelength dependent on its temperature. This radiation happens to be in the thermal infrared part of the spectrum, or in other words, sensible heat. Therefore, the atmosphere is heated by the surface, whereupon the heat tends to rise and heat the lower atmosphere.
What kind of radiation cooks food?
oven/stove emits infrared radiationmicrowave cooker uses microwave electromagnetic radiation to cook but uses shielding to keep it from being emittedtoaster emits infrared radiationtoaster oven emits infrared radiationrefrigerator/freezer emits waste heat as infraredradiationany appliance with lights emits visible lightradiationany smart appliance providing network connectivity emits radio frequency electromagnetic radiationetc.
The earths surface transfers heat to the atmosphere primarily by?
the answer is radiation
What type of radiation do human bodies give off?
Everything, including the human body, emits heat waves. Not everything emits radiation though.
