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What is a convex and a concave lens?
CONCAVE LENS : lens that atleast possess one end inwards is called as concave lens. CONVEX LENS : lens that atleast possess one end outwards like the exterior of the sphere is called convex lens. According to the medical values convex lens are used for long sight vision problem and concave lens for short sight vision problems.
How do images formed by a concave lens and convex mirror compare?
Both give diminished, virtual, erect image. Hence convex mirror is used as rear view glass in case of vehicles near by the drivers. Concave lens is used to correct short sightedness.
Which mirror is used in solar cooker Concave or convex mirror or concave lens or convex lens?
convex mirror is not used in solar cooker since it form image inside the polished surface
What is concave lens?
a lens that caves in like this )( as opposed to convex which puffs out like this (). a concave lens. it is used to bend and focus light
What are the uses of concave lens and convex lens?
They are used mainly for better sight. Here's an example of each. Convex is shaped like this ) which gives a wider angle. They are often used in convenience stores. Concave are used in side mirrors of vehicles They both provide different reflections. Much more effective than just a flat mirror for some purposes.
Which lens is a converging lens a double-convex lens or a spherical-convex lens or a plano-concave lens or a convexo-concave lens?
Your are mixing properties. Converging lens is always thicker in the centre and thinner at the edges. The other cathegory is the geometry of shape of the surfaces of the lens. Convex means that the shape is similar to the outer surbace of a sphere, concave means that the shape is similar to the iner surface of a sphere (or: convex = lower side of a spoon as we use it for sampling a soup; concave: upper (inner) shape of the spoon). A double convex lens is always a converging lens. A plano-concave lens is always a diverging (not converging) lens. A convexo-concave lens is the most usual shape of a lense used in spectacles. It can be either converging or diverging, depending on the radii of the surfaces.
What is the difference between a concave and convex lens?
Convex lenses are thicker in the middle than at the edges. They refract toward the center. Only people have convex lenses. Concave lenses are used in telescopes and glasses. Concave lenses are thinner in the middle than at the edges. When light passes through concave lenses always bend away from each other toward the edges of the lens.A convex or "positive" lens is thicker in the middle and thinner at the edges. A concave, or "negative" lens is thinner at the middle and thicker at the edges. Convex lenses project a real image behind the lens; concave lenses project a virtual image in front of the lens.
Compare the image formed by a concave lens and the image formed by a convex mirror?
the image formed by convex lens are real but the images formed by concave lens are virtual concave mirror are commonly used in to torches search light and vehicles headlights to get powerful parallel beam of light they are often used as a wing a to see a larger image of the face the dentist use a concave mirrors to see larger image of that is open send large can give are used to concentrate sunlight to produce heat in solar furnace
What kind of lens can be used to produce a virtual image?
Convex lens produces both real and virtual images. But concave lens produces only virtual images for real objects. If object is virtual then real image could be produced by a concave lens.
List two uses for concave lens?
Both concave and convex lenses are used in glasses; A microscope, like a reflecting telescope, uses a concave mirror, a plane mirror, and a convex lens; A refracting telescope uses two convex lenses to magnify images in the sky; binoculars use concave lenses to improve detail.
What is nature of concave lens?
Lens that possesses at least one surface that curves inwards. It is a diverging lens, spreading out those light rays that have been refracted through it. A concave lens is thinner at its centre than at its edges, and is used to correct short-sightedness. Hope this helps you :)
Can a Concave lens be use as an eyepiece in a microscope?
Concave lenses are used in the eyepieces of microscopes. However, they are not used alone on the eyepiece, but are joined in a concave-convex combination to prevent internal reflections.
