All matter is made of select one of the options below as your
a. ions
b. neutrons
c. atoms

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

the bal will not change its velocity.

option number c is the right answer.