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.
convex lens
A microscope typically uses multiple lenses, including both concave and convex lenses, to magnify and focus the light coming from the specimen being observed. The objective lens, which is closer to the specimen, is usually convex, while the eyepiece lens, which is closer to the observer's eye, is usually convex.
A telescope uses a convex lens to gather and focus light, a concave lens to correct spherical aberration, and a flat mirror to reflect and redirect the light towards an eyepiece or sensor. These components work together to magnify distant objects and allow for detailed observations.
Astronomical telescopes use a large concave mirror, a plane mirror, and a convex lens in their design. The concave mirror gathers light, the plane mirror reflects it to a more convenient viewing location, and the convex lens magnifies and focuses the image for observation.
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.
stupid questions have no answers....
No, a movie projector uses a convex lens.
A microscope typically uses a convex lens to focus light and magnify an image. The convex lens converges light rays to produce a magnified image, whereas a concave lens would diverge light rays and not be suitable for magnification in a microscope.
)( is a concave lens() is a convex lens
Double-convex lens
projector have concave or convex
A convex lens magnifies.
A converging lens is also known as a magnifying lens. The shape of the lens is a double convex shape.
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.
A convex lens is also known as a converging lens, while a concave lens is also known as a diverging 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 .
convex.