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What temperature does the sun have to be when it can burn things with a magnifying glass?
The sun is always the same temperature. It is the focusing of the sunlight into a narrow spot that generates enough heat to ignite flammable materials. Even an ordinary pocket magnifying glass will do it.
It is the focusing that is the trick. It concentrates all the heat that would have been spread over several sq inches, into a tiny spot - less than 1/10 inch diameter. So assume a lens diameter of 4 sq inches, and a focused spot of 1/10 a square inch, the energy concentration is 300+ times.
What else can I help you with?
How do you burn a hole with a magnifying glass?
It actually depends on what you're trying to burn a hole through. It can from a thin piece of paper to a large block of wood. I have only tried it for paper, and this is what I did: You make a spot on the piece of paper where you want it to burn. Try using a black sharpie because it attracts more heat. Take a typical magnifying lens and hold it between the sun and paper. There should be a weird shape, or dash of sunlight on your mark of sunlight. Make sure the light is refracted right, and is not spread out, but more focused to one point. It all depends on the weather or season really. During the summer, you can go outside and try it, and it will happen pretty fast. For the winter (which I tried), I was inside, in front of a mirror. I had to wait patiently for a few minutes, and the sun was moving by the hour, so I had to make sure my angle was correct. Hope this helps :D
Can you get a 3rd degree burn from the sun?
No, third-degree burns are typically caused by contact with hot liquids, flames, or chemicals. The sun can cause first and second-degree burns, but not third-degree burns, as it does not produce temperatures high enough to cause that level of burn.
How does a concave mirror focus light?
Concave mirrors used to focus light on a point, such as in a solar collector, would be in the shape of either a Hyperbolic or Parabolic section. The reason for the xxxxbolic section is that they both have focal points (foci?). any light coming into the mirror at any angle is reflected to this focal point. Think of using a magnifying glass to burn ants... you need to move the glass higher or lower to the ground until you get that bright dot of concentrated light/heat and then you can burn ants. The small white dot of light/heat is the focal point of you magnifying glass. Hope that helps..
How does the atmosphere's temperature effect the burn rate of a candle?
the atmospheres temperature changes the candle in size. i am a scientist, and have done this experiment many times. believe in my answer, for my answer is the ultimate truth.
What two things cause the nebula star to burn?
A nebula star, or protostar, begins to burn primarily due to gravitational collapse and the resulting increase in temperature and pressure at its core. As the cloud of gas and dust collapses under its own gravity, the temperature rises sufficiently to initiate nuclear fusion, primarily converting hydrogen into helium. This fusion process releases immense amounts of energy, causing the star to glow and eventually enter the main sequence phase of its life cycle.
How does a magnifying glass burn things?
A magnifying glass can concentrate sunlight onto a small area, causing the object underneath to heat up. As the temperature increases, it can eventually reach a point where the object ignites or burns. This is due to the magnifying glass focusing the light energy into a smaller space, intensifying its effects.
Here a magnifying glass can burn a whole in paper?
A magnifying glass can focus the sunlight into a small, intense spot on the paper, causing it to heat up and eventually burn a hole. The magnifying glass acts as a lens, converging the light rays to create a high enough temperature at the focal point to ignite the paper.
How does a plant burn when a magnifying glass and the sun join?
If you mean to ask how a magnifying glass can use sunlight to burn a plant, then here's how.A magnifying glass focuses the light going through it so that it all converges into a single point (focal point). The light that would have otherwise been spread out over the area of the magnifying glass is "concentrated". Therefore there is much more energy hitting that one point than otherwise would be. The light raises the temperature of the plant to the point where it will burn.
Can a hot day burn wood?
With a magnifying glass
Why do objects burn when light shines through a magnifying glass?
When light is concentrated through a magnifying glass, it focuses the light energy onto a small area, increasing the intensity of the light and heat generated. This can raise the temperature of the object to a point where it can catch fire or burn.
How long does it take to burn a paper with magnifying glass?
The time it takes to burn a piece of paper with a magnifying glass depends on various factors such as the intensity of the sunlight, the distance between the magnifying glass and the paper, and the type of paper. Generally, it can take a few seconds to a couple of minutes to start a fire on the paper using a magnifying glass.
Is burning an ant with a magnifying glass considered as solar energy?
Yes, using a magnifying glass to burn an ant is considered utilizing solar energy. The magnifying glass focuses the Sun's rays to create heat that can burn objects, in this case, an ant.
Why magnifying glass can burn paper?
A magnifying glass can burn paper by concentrating sunlight onto a small area, causing it to reach high temperatures. The lens of the magnifying glass acts as a converging lens, focusing the sunlight into a small, intense spot that can generate enough heat to ignite the paper.
Why couldn't the US get a big magnifying glass or something like that to keep the temperature warmer in the winter?
A big magnifying glass would not be effective in keeping the temperature warmer in the winter on a large scale because it would only heat small localized areas. Additionally, weather and climate are influenced by a variety of factors beyond just direct sunlight, so a magnifying glass would not have a significant impact on overall winter temperatures.
What is the best material to burn with a magnifying glass?
Dry leaves or paper are good materials to burn with a magnifying glass since they ignite easily and burn quickly under focused sunlight. It is important to ensure proper safety measures are in place when conducting such experiments.
How long does it take to burn a paper using magnifying glass?
It depends on the color, so i can't answer that.
Why does a magnifying glass must be held so that the light from the sun forms a circular dot to burn paper?
A magnifying glass forms a circular dot where it focuses rays of light from the sun. The focus of a magnifying glass is at a distance from the surface of the glass itself. So a magnifying glass must be held [approximately] perpendicular to the line joining the sun and the target, and at a distance from the target which equals the focal length of the lens.
