2.3.48 - Measuring refractive index

Understand how to measure the refractive index of a solid material.

Use - measuring refractive index to connect the rule to the data and decision in the question.

This matters because - measuring refractive index determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - measuring refractive index to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Measuring refractive index is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.