A candle of diameter $ d$ is floating on a liquid in a cylindrical container of diameter $D $  $(D>>d)$  as shown in figure. If it is burning at the rate of $2$ cm/hour then the top of the candle will
  • A
    Remain at the same height
  • BFall at the rate of $ 1\,cm/hour$
  • CFall at the rate of $ 2\,cm/hour$
  • DGo up the rate of $1\,cm/hour$
AIIMS 2005, Medium
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