Question

1. What type of lens is this?

A. convex
B. concave

Answer 1

the lens is a concave lens because it opens inward.

Answer 2

A. Convex.

Step-by-step explanation:

Think about it as such. "Concave" has the word "cave" in it, which usually implies an opening inwards. Therefore, the lens would curve inward. Convex, therefore, would be the opposite, and would be what is shown in the diagram provided.

Attached is an image of the difference between a Concave and a Convex.