Trying to find the right answer to this..

Mechanical Properties of Fluids

Why do the new earthen pots keep the water cooler than the old one?

There are fine pores on the surface of new earthen pots. The water rises in these pores due to capillary action and spreads over the surface. The water from the surface of pot, when evaporates, cools down the pot and keeps the water cold. With time, the dust particles fill the capillaries of pot and hence the above phenomenon do not take place in old pots.

459 Views

Water rises to height 1.2 cm in capillary tube on the surface of earth. How the height of water column will be affected when the apparatus is taken to the moon?

Large force is required to draw apart two glass plates enclosing a thin layer of water film. Explain why.

A capillary tube is dipped in water. The water rises to certain height. What will happen if we add some common salt in water?

Why does coating of glycerine over the glass window prevent raindrops from sticking to it?

First 38 39 40 Last