Question

When liquid medicine of density ρ is put in the eye, it is done with the help of a dropper. As the bulb on the top of the dropper is pressed, a spherical drop forms at the opening of the dropper. The radius of the opening of the dropper is r. When the weight of the drop exceeds the force due to surface tension, the drop gets detached from the dropper. Radius R of the drop when it detaches from the dropper is given by

Answer 1

Answer:

It is done with the help of a dropper as the bulb on the top of the dropper is pressed a drop forms at the opening of the dropper we wish to estimate the size of the drop. We dirst assume that the drop formed at the opening is spherical because the requires a minimum increase in its surface energy.

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