20 cm long capillary tube is dipped in water. The water rises up to 8 cm. If the entire arrangement is put in a freely falling elevator the length of water column in the capillary tube will be

  • Option 1)

    4cm

  • Option 2)

    20cm

  • Option 3)

    8cm

  • Option 4)

    10cm

 

Answers (1)

We learnt in

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.

 

 Water fills the tube entirely in gravity less condition i.e. 20 cm.

Correct option is 2.


Option 1)

4cm

This is an incorrect option.

Option 2)

20cm

This is the correct option.

Option 3)

8cm

This is an incorrect option.

Option 4)

10cm

This is an incorrect option.

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