CBSE · Class 12 · Physics · Ray Optics and Optical InstrumentsThe magnifying power of a simple microscope of focal length $f$ for a normal eye with least distance of distinct vision $D$ is:
Step-by-Step Solution
When the final image is formed at the least distance of distinct vision, the magnifying power is given by $m = 1 + D/f$.
Detailed Options Breakdown
Option : $m = D/f$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Ray Optics and Optical Instruments.
Option 1: $m = 1 + D/f$ (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: $m = 1 - D/f$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Ray Optics and Optical Instruments.
Option 3: $m = f/D$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Ray Optics and Optical Instruments.
💡 Study Guide: This question tests core syllabus concepts from Ray Optics and Optical Instruments. For formulas, key summaries, and mock exam reference guides, read the full Ray Optics and Optical Instruments Revision Notes.