what type of image is formed by byconvex cense

Asked by  | 23rd Mar, 2009, 07:24: PM

Expert Answer:

Lenses are classified by the curvature of the two optical surfaces. A lens is biconvex (or double convex, or just convex) if both surfaces are convex,

If the lens is biconvex or plano-convex, a collimated or parallel beam of light travelling parallel to the lens axis and passing through the lens will be converged (or focused) to a spot on the axis, at a certain distance behind the lens (known as the focal length). In this case, the lens is called a positive or converging lens.

Thus, image formed is real,behind the lens and inverted in the case.



Answered by  | 24th Mar, 2009, 11:09: AM

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