State the position of the object in front of a converging lens if:(a)It produces a real and same size image of the object.(b) It is used as a magnifying lens.(c)The power of a lens is - 5D. Name the type of lens

(a) If a converging lens (also known as a convex lens) produces a real and same size image of the object, the object is located at 2F (twice the focal length) from the lens. This is because, in a convex lens, a real, inverted and same size image is formed when the object is at 2F.

(b) If a converging lens is used as a magnifying lens, the object is located between the lens and its focal point. This is because, in a convex lens, a virtual, erect and magnified image is formed when the object is placed between the focal point and the lens.

(c) The power of a lens is the reciprocal of its focal length (in meters). If the power of a lens is -5D, it means the focal length of the lens is -1/5 m or -20 cm. The negative sign indicates that the lens is a diverging lens, also known as a concave lens.