Question

Thick glass tumblers crack when hot liquid is poured into it due to unequal expansion of the inner and outer layers of glass.

• A. True
• B. False

Answer 1

The correct option is A True

1. When hot liquid is poured into the glass tumbler, the inner walls of the tumbler expand.
2. Since the thick glass tumbler has low thermal conductivity, so outer layer of the tumbler does not expand much.
3. Due to this uneven expansion of the inner and outer surface, the tumbler breaks.

Hence, the given statement is True.