Physics Ray Optics and Optical Instruments 1 Mark
Appeared in: 2025 (3 sets)
A person with normal near point $25\text{ cm}$, using a compound microscope with an objective of focal length $0\cdot8\text{ cm}$ and eyepiece of focal length $2\cdot5\text{ cm}$ can bring an object placed at $0\cdot9\text{ cm}$ from the objective in sharp focus. If the image formed by the objective is at a distance of $2\cdot27\text{ cm}$ from the eyepiece, the separation between the lenses is : (A) $7\cdot47\text{ cm}$ (B) $8\cdot47\text{ cm}$ (C) $9\cdot47\text{ cm}$ (D) $10\cdot47\text{ cm}$