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A convex lens can concentrate sunlight to a small point, creating intense heat that can ignite materials. By focusing sunlight through a convex lens onto a combustible material, you can generate enough heat to start a fire. This process is called solar or lens fire starting.

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1y ago

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Related Questions

What type of lens can start a fire?

a convex lens


What kind of lens would let you focus the sun rays light to start a fire?

A magnifying lens, like a Fresnel lens or a convex lens, can concentrate sun rays to create a focal point that is intense enough to start a fire. This works by focusing sunlight onto a small area, increasing the temperature and igniting flammable material like paper or dry leaves.


In olden days civilization in South America used a lens to start fire.what kind of lens did they use and how did the fire start?

They Used a Convex Lens


What kind of lens would let you focus the sun's rays to start a fire?

A convex lens, such as a magnifying glass, can focus the sun's rays onto a small point, creating enough heat to start a fire. The lens concentrates sunlight in a way that increases the temperature at the focal point, igniting flammable material.


In olden days civilizations in south America use a lens to start a fire what kind of lens did they used and how did the fire start?

Well what u are refrerring to is the process of refraction. They would be using a convex lens. this lens has the ability to refract all the light rays which come from a far distance (known as infinity in physics) towards a common point (called focus). So obviously if all the rays reaching the lens from the sun are refracted by a convex lens they would heat up the point at which all of them converge. this started a fire. this can also be done with a magnifying glass as that also has a convex lens. TW K


Can a concave lens start a fire with the aid of the sun?

No, a concave lens cannot start a fire with the aid of the sun. Concave lenses cause light rays to diverge, which would spread the sunlight out rather than concentrate it to create enough heat to start a fire. For starting a fire with a lens, a convex lens or a magnifying glass is usually used to focus sunlight to a point.


How can a convex lens be useful for making a fire?

A convex lens can be used to concentrate sunlight onto a small spot which can generate enough heat to start a fire. By focusing the sunlight onto a dry piece of tinder, the lens can create a hot spot that ignites the material, similar to how a magnifying glass can start a fire.


To magnify an object would you use a convex lens or a concave lens?

You would use a convex lens.


What type of lens would you use to magnify an object?

You would use a convex lens.


What kind of lens does a projector use?

projector have concave or convex


What type of lens would you use to examine a tiny insect?

convex lens


Are plano lens convex?

No - by definition. You can have a plano-convex (or -concave) lens (one side flat). Actually a purely plano "lens" would be merely a glass disc.