Q.7 State two differences between a convex and a concave lens.


Answer :

CONVEX LENS :

(1) Convex lens is thicker at the middle than edges.

(2) Convex lens converged the light ray falling on it.

(3) Image formed is real or virtual.

CONCAVE LENS :

(1) Concave lens is thinner at the middle than edges.

(2) Concave lens diverges the light ray falling on it.

(3) Image formed is virtual.

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