For Class 12 Physics, explain or solve a optical instruments question from the chapter "Ray Optics". Focus on mistake correction and show the working clearly.
Step-by-step solution path
Read the topic idea: Optical instruments.
Recall the core explanation from the chapter: Physics syllabus chapter for Class 12.
Use the related formula "n = sin i/sin r" as the main tool while solving.
Write the reasoning in simple school-level language before the final answer.
Final learning answer
This example is centred on Optical instruments. A strong solution should identify the correct data, apply n = sin i/sin r, and explain each transition instead of jumping directly to the answer.
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