Sure; there are solar ovens that do precisely that.One design is to simply cover an enclosed area with glass. The heat gets "trapped" inside (the glass is transparent for visible light, but not to infrared radiation); and the temperature inside gets hot enough to do baking.
Another design is to concentrate light with a parabolic mirror - concentrating it on a spot where the pot is suspended.
Well, light has to be concentrated to be hot enough to cook food, kinda like using a magnifying glass to burn stuff, even though normal sunlight can't do it alone.A2. And don't forget that microwave ovens typically have a power of about 1kW. A 1kW infrared lamp will heat up food pretty fast.BUT the microwaves penetrate the food to the centre, where they vibrate the water molecule. Whereas you'd have to wait for an IR lamp's heat to be conducted to the centre which will take some time by conduction.Microwaves are a lot more penetrating than visable light. It gets absorbed easier, wheras light reflects, etc.
No, microwaves are not a form of visible light. They fall within the electromagnetic spectrum at lower frequencies than visible light. Microwaves are used in appliances like microwave ovens for cooking food.
Visible light. It has a higher frequency so more energy.
No, x-rays are not visible light.
The frequency range of visible light.
yes its does because when the microwave is on and the plate is rotating,the light is actually heating the food. It is not the visible light that does the heating, that is provided simply so you can see inside the oven. It is the microwaves that do the heating, by agitating molecules of water in the food. That's why you can't heat dry food in microwave oven. The microwaves are EM radiation like visible light, but a different wavelength.
You can light up a stove and cook some food. If you are ever stuck alone in the woods that match can provide you with light, warmth, and it can cook food.
Microwaves use radiation to cook food and radiation is a form of light. They do not use actual light bulbs to cook though.
Well, light has to be concentrated to be hot enough to cook food, kinda like using a magnifying glass to burn stuff, even though normal sunlight can't do it alone.A2. And don't forget that microwave ovens typically have a power of about 1kW. A 1kW infrared lamp will heat up food pretty fast.BUT the microwaves penetrate the food to the centre, where they vibrate the water molecule. Whereas you'd have to wait for an IR lamp's heat to be conducted to the centre which will take some time by conduction.Microwaves are a lot more penetrating than visable light. It gets absorbed easier, wheras light reflects, etc.
It's a wavelength of light which is outside the visual spectrum.
Warmth, to cook food, and light
The microwave energy in a microwave oven is of a much lower frequency than light, but light is electromagnetic energy like the microwave radiation is.
light a small fire and put a pot over it. then put soups and other foods into it. It would cook and there you have it, nice hot food!!
Visible light has a shorter wavelength, and therefore a higher energy content than microwaves. You may wonder how this is possible, when microwaves heat up your food so effectively, and visible light doesn't. That's because a microwave oven produces microwaves that are tuned to the exact resonant frequency of the water molecule. Otherwise, the microwaves would heat your food even less than an ordinary light bulb would. =============================================================================== Your answer is only partially correct. The difference in frequency (visible light is much higher) makes the energy content of visible light 30,000 to 50,000 times greater than that of microwave radiation. Where you are incorrect is saying that the microwaves have "the exact same resonant frequency of the water molecule". Actually, the resonant frequency of water at room temperature is about 22 gigahertz (GHz), while the frequency of the waves in a microwave oven is 2.45 GHz, almost an order of magnitude lower. Further, as the water gets hotter, its resonant frequency increases and so couple the microwave energy less and less; so warm and hot water heat more slowly that cold water. The major reason visible light isn't used to cook food is that its penetration depth into the food (directly related to its wavelength) is so small that it can only heat the surface - it has virtually no penetration into the food. Visible light has been used, in the form of a halogen bulb in some microwave ovens so the microwave heat or cook the bulk of meat, while the visible light browns and even crisps the surface.
No, microwaves are not a form of visible light. They fall within the electromagnetic spectrum at lower frequencies than visible light. Microwaves are used in appliances like microwave ovens for cooking food.
One difference between visible and non-visible light is that visible light can be seen by the human eye, while non-visible light, such as ultraviolet or infrared light, cannot be seen without special equipment.
It absorbs different wavelengths of visible light