Pascal's law states that ____________.

Which instrument is used to measure pressure ?

A force is applied on a cube of side 3m.  Another force, double the magnitude of the previous force is applied on a cube of 1m.  Calculate the ratio of pressure on the first cube (P) to the pressure on the second cube (P¹)?

The working of hydraulic machines are based on

Plants get water through the roots by the action of:

A force F is applied on a uniform rod of cross-section A and a force F¹ is applied on a uniform rod of cross-section 3A.  What is the relation between F and F¹ if the pressure on both is the same.

Pressure decreases if

Choose the wrong statement from the following

Study of fluid mechanics called?

When the area  decreases,  pressure ___________?

Pasccal's Law is valid only for ___________.

Plants get water through the roots because of 

The height of a liquid in a fine capillary tube 

A capillary tube when immersed vertically in a liquid records  a rise of 3 cm.  If the tube is immersed in the liquid at an angle of 60^o with the vertical, then the length of the liquid column along the tube will be

Water rises upto a height of 5 cm in a capillary tube of radius 2 mm.  What is the radius of the capillary tube if the water rises upto a height of 10 cm in another capillary?

If the surface of a liquid is plane, then the angle of contact of the liquid with the walls of the container is

According to Archimedes's principle, loss of weight of a body immersed in a liquid is equal to

Pressure applied to an enclosed fluid is

A block of ice floats on a liquid of density 1.2 in a beaker then the level of liquid when the ice completely melts

A number of small drops of mercury coalesce adiabatically to form a single drop.  The temperature of drop 

Surface tension of a soap solution is 1.9 x 10^-2N/m . Work done in blowing a bubble of 2.0 cm diameter will be

Plants get water through the roots because of

Choose the wrong statement from the following.

The height of a liquid in a fine capillary tube

At critical temperature, the surface tension of a liquid

A capillary tube when immersed vertically in a liquid records a rise of 3 cm.  If the tube is immersed in the liquid at at angle of 60^o with the vertical, then length of the liquid column along the tube will be 

When the angle of contact between a solid and a liquid is 90^o, then

Water rises up to a height of 5 cm in a capillary tube of radius 2 mm.  What is the radius of te capillary tube if the water rises up to a height of 10 cm in another capillary?

If the surface of a liquid is plane, then the angle of contact of the liquid with the walls of container is 

Two soap bubbles have radii in the ratio of 4 : 3.  What is the ratio of work done to blow these bubbles?

The height of water in a capillary tube  of radius 2 cm is 4 cm.  What should be the radius of capillary, if the water rises to 8 cm in tube?

Water rises up to a height of 4 cm, in a capillary tube immersed vertically in water.  What will be the length of water column in the capillary tube, if the tube is immersed in water, at an angle of 60^o with the vertical?

The surface of water in contact with glass wall is 

Pressure inside two soap bubbles is 1.01 and 1.02 atmospheres.  Ratio between their volume is

One end f a towel dips into a bucket full of water and other end hangs over the bucket.  It is found that after some time the towel becomes fully wet.  It happens 

If the surface of a liquid is plane, then the angle of contact of the liquid with the walls of container is

Water rises up to a height h, in a capillary in tube of radius r. The mass of the water lifted in the capillary tube is M.  If the radius of the capillary tube is doubled, the mass of water that will rise in the capillary tube will be

5 g of water rises in the bore of capillary tube when it is dipped in water.   If the radius of bore capillary tube is doubled,  the mass of water that rises in the capillary tube above the outside water level is 

The height of a liquid in a fine capillary tube