Question

Skin of our fingers shrink after washing clothes for long time

Answer 1

Our skin is porous and behaves as a semi permiable membrane. When we washclothes, our hands are exposed to water for a long time. Our hands behave as hypertonic solution and the outside of our hands behave as hypotonic solution. Hence, water flows from high concentration to low concentration. The water is not entering your hands, it actually leaves them and hence, they shrink.

Answer 2

Hey, here is your answer...
But first clear that our fingers don't shrink, they swell out of water due to the transfer of water between the outside our fingers to inside our fingers.
this happens due to excess of water in the surroundings.
they same can be seen when dried raisins are kept in water...
Hope this helps