Answer:
option (A)
Explanation:
A convex lens is the transparent refracting surface which is curved and it is thicker at the middle and thinner at the edges.
A convex lens is the lens which generally produces real images when the object placed beyond the focal point of the lens.
When the object is placed between the optical centre and the focal point of the lens, it produces virtual image which is highly enlarged. This is used as a hand lens.
When the object is placed at the focal point of the lens, the image is formed at the infinity.
