Question

what are the uses of convex lens?

Answer 1

convex lens are used in vehicles to see the the big vehicles from long distance.
they are used in plus lens.

Answer 2

A convex lens, also known as a converging lens, is identified by its thicker middle and thin outer edges. It consolidates the rays of light that travel through it, as opposed to diverting and spreading them the way a concave lens does. When light passes through the lens, it converges into a single point of focus called the principal focus. Camera lenses are convex, as they focus all rays of light onto the subject being photographed to make that subject appear clearer. A magnifying glass is another example of a convex lens; once the lens is placed close enough to the object, it will produce an upright, virtual image of the object.