Concave or Convex

Which type of lens is thicker at the center and thinner at the edges?

• concave lens

• plano-convex lens

• bifocal lens

• convex lens

What type of lens is used in a magnifying glass?

• convex lens

• concave lens

• bifocal lens

• plano-convex lens

Which type of lens is thinner at the center and thicker at the edges?

• plano-convex lens

• concave lens

• bifocal lens

• convex lens

What type of lens is used in a telescope?

• bifocal lens

• concave lens

• convex lens

• fisheye lens

Is a concave lens thicker or thinner in the middle? 

• Thicker 

• Thinner 

Which type of lens diverges light rays?

• concave lens

• biconvex lens

• plano-convex lens

• convex lens

Which type of lens is used to correct nearsightedness?

• convex lens

• concave lens

• bifocal lens

• plano-convex lens

What type of lens is used in a projector?

• convex lens

• plano-convex lens

• concave lens

• bifocal lens

A lens that is thinner in the middle than on the outside is called ___.

• converging

• concave

• convex

• achromatic

How does a concave lens differ from a convex lens?

• A convex lens is another way to describe a plane mirror; a concave lens is curved

• A concave lens is curved inward on both sides; a convex lens is on only one side

• A convex lens has a thick center and thin edges, a concave lens has a thin center and thicker edges

• A convex lens has a thin center and thick edges. a concave lens has a thick center and thinner edges