Respuesta :
Hot Stage System microscopy can measure a type of glass's refractive index.
The technique is used for studying phase changes of a substance through application of heat and process of melting.
The technique is used for studying phase changes of a substance through application of heat and process of melting.
Answer:
refractive index.
Explanation:
refractive index. I don't know why the other person made their answer too detailed/complicated.