Question

List the differences between concave and convex lenses

Answer 1

1 concave mirror is made by silvering the outer surface of a piece of a hollow sphere such that the reflection takes place from the hollow
2 convex mirror is made by silvering the inner surface of a piece of a hollow sphere such that the reflection takes place from the outer surface
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Answer 2

$\textbf{Convex Lens }$:

It is thinner at the edges and thicker at the middle.

It is a converging lens.

It mostly forms real image.

$\textbf{Concave Lens }$:

It is thinner in the middle and thicker at the edges.

It is a diverging lens.

It always forms virtual images.