Consider a thick glass tumbler and a thin glass tumbler which are made of the...

JAMB 1979

Consider a thick glass tumbler and a thin glass tumbler which are made of the same kind of glass. Some hot liquid is poured into them. Which of the following statements is correct?

A. the thick tumbler is less likely to crack because it is stronger
B. the thick tumbler is less likely to crack because it insulates the heat beter, glass being a poor conductor of heat
C. Both tumblers are equally likely to crack because they are made of the same kind of glass
D. the thick tumbler is more likely to crack because uneven expansion persists for a longer time within the thicker glass
E. the thick tumbler is more likely to crack because it is heavier

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Correct Answer: Option D

Explanation

Usually, when pour water into a glass, the more thick glass is easier to break. Because the glass tumbler is cold, when hot water is poured, and the inner wall expands rapidly due to thermal expansion and contraction.

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