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A candle of diameter d is floating on a liquid in a cylindrical container of diameter D (D>>>d) as shown in the figure. If it is burning at the rate of 2cm/h, then the top of the candle will:

 

Option: 1

Remain at the same height


Option: 2

Fall at the rate of 1cm/h


Option: 3

Fall at the rate of 2cm/h


Option: 4

Go up at the rate of 1cm/h


Answers (1)

best_answer

The fraction of length will remain unchanged.

\frac{y_{i}}{y} = constant = \frac{1}{2} of the value in the given question.

\therefore If the total melting rate is 2cm/h, then the top of the candle will fall at the rate of 1cm/h.

Posted by

Suraj Bhandari

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