When hot-water is sprinkled on a hotter glass tumbler, it breaks because
A
Glass suddenly expands
B
Glass suddenly contracts
C
Water evaporates
D
Glass reacts chemically with water
Correct Answer: Glass suddenly contracts
If the poured liquid is relatively hotter or colder in comparison to the tumbler, it will break. When hot water is poured into a tumbler there is an uneven increase in the thermal expansion of the walls of the vessel.