Question

The ball pen works on the principle of
1)Visosity 2) Gravitational
3) Capillary action and surface tension 4) Boyle's law
5) Diffusion

Answer 1

Hi...!

3) Capillary action and surface tension is the answer.

The ball pen works on the principle of Capillary action and surface tension.

Hope this helps.....!!

^_^

Answer 2

Answer:

The ball pen works on the principle of capillary action and surface tension.

Explanation:

Capillary action means that an ink is pulled due to the thin length of the capillary as a part of fluid moves out. When we move the pen on a piece of paper, the ballpoint of the pen slightly rotates.

As a result, the ink in thin capillary cartridge is pulled and is thrown slightly on the paper. Due to this the another part of the ink also slightly lowers itself. Thus, providing continuous flow. Surface tension prevents the flow of ink from the other side of the cartridge.