Question

3. State two differences between a convex and concave lens​

Answer 1

Answer:

A concave mirror gives a magnified and erect image of a nearby object whereas a convex mirror gives an erect and diminished image.

Explanation:

Convex lens is thicker in the middle while concave lens is thinner in the middle. A convex lens converges the light rays falling on it, while a concave lens diverges the light rays falling on it.

Answer 2

Answer:

(i) Convex lens is thicker in the middle while concave lens is thinner in the middle.

(ii) A convex lens converges the light ray falling on it, while a concave lens diverges the light ray falling on it.