A) \[\frac{1}{33}\]
B) \[\frac{1}{18}\]
C) \[\frac{3}{3}\times {{10}^{-4}}\]
D) All of it will melt
Correct Answer: A
Solution :
Key Idea: Hailstone possesses potential energy due to its height. Let k be the fraction of ice that melts. Hence. potential energy \[=k\times \] latent heat \[mgh=k\,mL\] \[\Rightarrow \] \[k=\frac{gh}{L}\] \[=\frac{10\times 1000}{3.34\times {{10}^{5}}}\approx \frac{1}{33}\]
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