Continuing with our discussion on Bernoulli’s theorem, we take a look at some of the previous questions asked in the Physics paper of IIT-JEE dealing with the same.We would also be trying to find a pattern in the theoretical aspects of the said questions. [ Answers in the next post dealing with Bernoulli's theorem ]

*1] Water from a tap emerges vertically downwards with an initial speed of 1.0m/s.The cross sectional area of tap is .Assume that the pressure is constant throughout the stream of water and that the flow is steady.The cross-sectional area of stream 0.15m below the tap is..  [ IIT-JEE 1998 ] 

*2] A glass tube of uniform internal radius [ r ] has a valve separating the two identical ends.Initially,the valve is in a tightly closed position.End 1 has a hemispherical soap bubble of radius r.End 2 has sub-hemispherical soap bubble as shown.What happens after opening the valve ?  [ IIT-JEE 2008 ] 

*3 ] A non-viscous liquid of constant density 1000 kg/flows in stream line motion along a tube of variable cross-section.The tube is kept inclined in the vertical plain as shown.The area of cross-section of the tube at two points P and Q at heights of 2m and 5m are respectively 4x and 8 x .Find the work done per unit volume by the pressure and the gravity forces as the fluid flows from point P t0 Q.  [ IIT-JEE 1997 ] 

*4 ] A liquid of density 9ookg/is filled in a cylindrical tank of upper radius 0.9m and lower radius 0.3m.A capillary tube of length l is attached at the bottom of the tank as shown.The capillary has outer radius 0.002m and inner radius a.When pressure p is applied at the top of the tank volume,flow rate of the liquid is 8x/s and if capillary tube is detached,the liquid comes out from the tank with a velocity 10m/s.Determine the coefficient of viscosity of the liquid ?        [ IIT-JEE 2003 ]