Question

Identify three devices that use Convex lenses.

Please help.
(and no it doesn't give any options, it can be any device you can think of that uses a Convex lense)

Answer 1

Microscope lenses , glasses for people who can't see faraway as well and  microwave lenses which reflect electromagnetic radiation. Oh and curved mirrors.  

Answer 2

Step-by-step explanation:

Convex lens is the lens which is used to converge the rays of light after refraction.

When the rays of light are coming parallel to the principal axis then after refraction they goes from the focus.

It is used as rear view mirror in automobiles. In this case it pelroduces small and erect image of faroff objects.

It is used in spectacles using for hypermetropia.

It is used in microscopes and telescopes.

Our eye also have a convex lens which forms images on retina.