A) One fourth
B) Halved
C) Doubled
D) Four times
Correct Answer: C
Solution :
\[H=\frac{{{V}^{2}}t}{R}\] Þ \[\frac{{{H}_{Half}}}{{{H}_{Full}}}=\left( \frac{{{R}_{Full}}}{{{R}_{Half}}} \right)=\frac{R}{R/2}=2\] Þ \[{{H}_{Half}}=2\times {{H}_{Full}}\].
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