Question 2 :
When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in dropper. The rise of water in the dropper is due to

Question 3 :
The velocity distribution of a laminar flow through a cylindrical tube is

Question 4 :
Liquid pressure at a point in a liquid does not depend on the :

Question 5 :
<span>The flow characterized by small whirlpool-like regions is termed as </span>

Question 6 :
A substance which flows from one point to another point is called is fluid.

Question 9 :
The wall of the storage dam built wider at the base than its top because the pressure against the wall

Question 10 :
A deep sea diver may hurt his ear drum during diving because of:

Question 11 :
A stream of water flowing horizontally with the speed of $15{ ms }^{ -1 }$ gushes out of a tube of cross-sectional area ${ 10 }^{ -2 }{ m }^{ -2 }$ and hits a vertical wall nearby. What is the force exerted on the wall by the impact or water? Assuming it does not rebound.

Question 12 :
The pressure<span> exerted by a column of </span>liquid<span> of height $h$ and density $p$ is given by the hydrostatic </span>pressure<span> equation equal to</span>

Question 13 :
The deep sea divers wear specially designed suites to protect from<br>

Question 14 :
A capillary tube of radius $r$ is immersed in water and water rises in it to a height $h$. Mass of water in the capillary tube is $m$. If the radius of the tube is doubled, mass of water that will rise in the capillary tube will now be

Question 17 :
<span>The height to which a cylindrical vessel be filled with a homogeneous liquid, to make the average force with which the liquid presses the side of the vessel equal to the force exerted by the liquid on the bottom of the vessel, is equal to</span> <br><br>

Question 19 :
In a surface tension experiment with a capillary tube, water rises upto 0.1 m. If the same experiment is repeated in an artificial satellite revolving around the earth, then the water will rise in the capillary upto a height of

Question 20 :
The pressure ${P}_{1}$ at a certain depth in river water and ${P}_{2}$ at the same depth in sea water are related as

Question 21 :
A substance that continually deforms under an applied shear stress is called a

Question 22 :
When a bubble, released from the bottom of a lake, rises near the water surface, it

Question 23 :
The average depth of Indian ocean is about 3000 m Bulk Modulus of water is $2.2\times 10^4\ N/m^2$ ,$g=10 \ m/s^2$,then the fractional compression is $\dfrac{\Delta V}{V}$ of water at the bottom of Indian Ocean is:

Question 24 :
A capillary tube is dipped in water vertically.Water rises to a height of 10mm. The tube is now tilted and makes an angle 60$^{o}$ with vertical.Now water rises to a height of:

Question 26 :
A capillary tube of radius $r$ is immersed in water and water rises to a height of $h$. Mass of water in the capillary tube is $5\times 10^{-3}kg$. The same capillary tube is now immersed in a liquid whose surface tension is $\sqrt{2}$ times the surface tension of water. The angle of contact between the capillary tube and this liquid is $45^o$. The mass of liquid which rises into the capillary tube now is (in kg):

Question 27 :
A capillary tube with inner cross-section in the form of a square of side a is dipped vertically in a liquid of density $ \rho $ and surface tension $ \sigma $ which wet the surface of capillary tube with angle of contact $ \theta $. The approximate height to which liquid will be raised in the tube is : (Neglect the effect of surface tension at the corners of capillary tube)

Question 28 :
Consider the equations $P = \displaystyle \lim_{\triangle S\rightarrow 0} \dfrac {F}{\triangle S}$ and $P_{1} - P_{2} = \rho gz$.<br>In an elevator accelerating upward.

Question 29 :
A liquid is flowing in a horizontal uniform capillary tube under a constant pressure difference p. The value of pressure for which the rate of flow of the liquid is doubled when the radius and length both are doubled, is

Question 30 :
A right angled tube is fixed horizontally on a horizontal surface and an ideal liquid of density p is flowing into the tube at the rate of $Q = 4 m^3/s$ Cross sectional area of the tube at intake and outlet positions are $A = 2 m^2$ and $S = 1 m^2$ respectively. The magnitude of net force exerted by liquid on the tube is (Given that the value of atmospheric pressure $P_o = 4p N/m^2$)