The top of the convex lens is thicker than the bottom.
Yes and they are made to converge light rays.
The Middle!
concave
Convex (I prefer converging lenses) lenses are thicker in the middle than at the edges. This causes the rays to converge towards the principle axis (line running through the center of the lens perpendicular to the surface). two images will be formed. When the object you are viewing is farther from the lens than the focal length you will have an inverted real image. This image can be enlarged (when the object is between the focal length and twice the focal length), the same size (when the object is twice the focal length from the lens) or reduced (when the object is beyond twice the focal length). When the object is closer to the lens than the focal length you are using the lense as a magnifying glass and you will have an upright virtual image.
This depends on the type of lens. If it is a convex lens then they converge at the focus on the other side of the lens. If it is a concave lens, then they diverge and appear to be coming from the focus present on the same side of the lens as the incident ray.
a concave lense
usually it starts burning something that it is in contact with but im not sure what its called
On average, it is much thicker than oceanic crust.
a convex lens
The edges of a convex lens are thicker than the middle.
In a convex lens, the middle is thicker than the outer rim. In a concave lens, the outside rim is thicker.
A convex lens
A convex lens.
Convex lens.
A convex lens.
A convex lens.
A convex lens is thicker in the centre than the outsides. A concave lens is thinner in the centre than the outsides.
Convex.
convex
A convex lens is thicker in the center than at the edges. A convex lens is like a concave mirror.A concave lens is thinner in the center than at the edges.