Transmission Of Heat Question 43
Question: A piece of glass is heated to a high temperature and then allowed to cool. If it cracks, a probable reason for this is the following property of glass
[CPMT 1985]
Options:
A) Low thermal conductivity
B) High thermal conductivity
C) High specific heat
D) High melting point
Show Answer
Answer:
Correct Answer: A
Solution:
When a piece of glass is heated, due to low thermal conductivity it does not conduct heat fast. Hence unequal expansion of it’s layers crack the glass.
BETA
