Correct Answer: convex

Solution : The correct option is convex .

There are two types of lenses- converging and diverging lenses. In a magnifying glass, a converging or convex lens is used. This type of lens is curved outward and thicker in the middle, which causes light rays passing through it to converge or come together. This convergence of light helps to magnify and focus the image being viewed through the magnifying glass.