Question

Which of the following instruments is used to determine the interface of colours of glass containers during gradual cooling process?

• A. Polariscope
• B. Microscope
• C. Stethoscope
• D. Stroboscope

Hint:

Polariscopes are used to analyze optical properties and stress distribution in materials.

Answer 1

The Correct Option is A

A polariscope is used to observe stress patterns and color interfaces in glass containers during the cooling process. It helps in determining the internal stresses that develop as the material cools, which can affect the quality and durability of the glass.