Convex bulges outward (thicker in the center than the edge)Concave bulges inward (thinner in the center than the edge)Convex lenses magnify when you look through then, concave lenses make things look...
Concave mirror * its reflecting surface is curved inwards *it can form both real and virtual images *the centre of curvature and the focus lies in front of the mirror *it can form both enlarged and...