Appeared in: 2026 (2 sets)
(iv) Consider a convex lens of focal length $15\text{ cm}$. For which of the following values of object-screen distance, two positions of the object can be found to obtain sharp image on the screen ?
(A) $45\text{ cm}$
(B) $50\text{ cm}$
(C) $55\text{ cm}$
(D) $65\text{ cm}$