The height upto which water will rise in a capillary tube will be:

Options

A. minimum when the temperature of watr is `4^(@)C`
B. maximum when the temperature of water is `4^(@)C`
C. minimum when the temperture of water is `0^(@)C`
D. the same at all temperatures

Answer

A

Explanation

Water has an anamolous expansion and its density is maximum at `4^(@)C`
` :' T = (rhdg)/(2 cos theta) " " :. h = (2T cos theta)/(rdg) `
` :. h prop 1/d`
` :. ` As is maximum , h will be minimum at ` 4^(@)C`