MCQ
The height upto which water will rise in a capillary tube will be
  • A
    Maximum when water temperature is $4°C$
  • B
    Maximum when water temperature is $0°C$
  • Minimum when water temperature is $4°C$
  • D
    Same at all temperatures

Answer

Correct option: C.
Minimum when water temperature is $4°C$
c
(c) $h = \frac{{2T\cos \theta }}{{rdg}}$. For water, density is maximum at ${4^o}C$, so the height is minimum at ${4^o}C$.

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