Answer:
convex lens-A convex lens is also known as a converging lens. ... A converging lens is a lens that converges rays of light that are traveling parallel to its principal axis
concave lens-A concave lens is a lens that possesses at least one surface that curves inwards
plane mirror-A plane mirror is a mirror with a flat reflective surface
convex mirror-A convex mirror, or simply put a curved mirror, is a mirror in which the reflective surface bulges toward the light source
concave mirror-A concave mirror, or converging mirror, has a reflecting surface that is recessed inward (away from the incident light)
thats all hope it helps ;)
