Small droplets of a liquid are usually more spherical in shape than larger drops of the same liquid because
A container partly filled in a liquid is suspended from a spring balance. A small body is gently dropped in the container.The pointer of spring balance will

Solution
The pointer of spring balance will read more. The increased reading will be equal to the upthrust given by Archimedes principle.
Liquid pressure at a point in a liquid does not depend on the
According to Hooke’s law of elasticity, if stress is increased, then the ratio of stress to strain

Solution
The ratio of stress to strain is always constant. If stress is increased, strain will also increase so that their ratio remains constant.
With the increase of temperature, the surface tension of the liquid

Solution
SurfaceTension is the property of liquid at rest. As we increase temperature, due to gain in kinetic energy of molecules, surface tension decreases.
Two soap bubbles are held bya tube. What will happen ?

Solution
The excess pressure inside a soap bubble is given by,The excess pressure inside a soap bubble is given by,\(P=\frac{4T}{r}\).As the excess of pressure is less in bigger bubble means pressure is more inside bigger bubble. So, air travels from bigger bubble to smaller.
The rain drops falling from the sky neither injure us normake holes on the ground because they move with
The lift of an air plane is based on

Solution
Apply Bernoulli’s theorem.

Solution
Velocity of water from hole
\(A=v_{1}=\sqrt{2gh}\)
Velocity of water from hole B=\(v_{2}=\sqrt{2g(H_{0}h)}\)
Time of reaching the ground from hole B
\(=t_{1}=\sqrt{2(H_{0}h)/g}\)
Time of reaching the ground from hole A\(=t_{2}=\sqrt{2h/g}\)