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  • Help me understand! A capillary tube when immersed vertically in a liquid records a rise of 3 cm. if the tube is immersed in the liquid at an angle of 60° with the vertical, then length of the liquid column along the tube will be

A capillary tube when immersed vertically in a liquid records a rise of 3 cm. if the tube is immersed in the liquid at an angle of 60° with the vertical, then length of the liquid column along the tube will be

  • Option 1)

    2 cm

  • Option 2)

    3 cm

  • Option 3)

    6 cm

  • Option 4)

    9 cm

 

Answers (1)

best_answer

As we discussed in concept

Capillary -

If a tube of very narrow bore is dipped in a liquid, the liquid in the capillary either ascends or descends .

- wherein

A towel soaks water.

 

 Given h = 3cm        \theta = 60^{\circ}               l=?

h\:=\:l\:cos\theta\:\:\ =>\:\:\:l=\frac{h}{cos\theta}

l\:=\frac{3}{cos60^{\circ}}\:\:\:\:\:\:\:=l=\frac{3}{\frac{1}{2}}\: =>l=6\:cm


Option 1)

2 cm

This option is incorrect.

Option 2)

3 cm

This option is incorrect.

Option 3)

6 cm

This option is correct.

Option 4)

9 cm

This option is incorrect.

Posted by

divya.saini

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