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They are convex, or rounded outward. The title is given from where you view through them - from convex to concave. The image is in focus from this direction

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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.


A lens that curves outward is called?

)( is a concave lens() is a convex lens


Which of the following lenses is a converging lens A double-convex lens B spherical-convex lens C plano-concave lens D convexo-concave lens?

Double-convex lens


What kind of lens does a projector use?

projector have concave or convex


Which type of lens magniies - convex or concave?

A convex lens magnifies.


What lens is a converging lens double-convex spherical-convex plano-concave or convexo-concave lens?

A converging lens is also known as a magnifying lens. The shape of the lens is a double convex shape.


What is Another name of convex and concave lens?

A convex lens is also known as a converging lens, while a concave lens is also known as a diverging lens.


When does a concave lens act as convex lens?

A convex lens acts as concave lens when it is kept in a medium whose optical density is higher than the lens itself. And the vice-verse is also true .i.e, a concave lens can act as convex lens too .


What lens is used in vehicles is it convex or concave?

convex.


Is your eye a convex of concave lens?

It's convex


What type of lens does the watch repairer use is it convex or concave?

Convex Lens


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.