Home
Class 11
PHYSICS
At the mount of the tap area of cross-se...

At the mount of the tap area of cross-section is `2.0cm^(2)` and the speed of water is `3m//s`. The area of cross-section of the water column 80 cm below the tap is (use `g=10m//s^(2))`

A

`0.6 cm^(2)`

B

`21.2 cm^(2)`

C

`1.5 cm^(2)`

D

`2.0 cm^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`v_(2)^(2)=v_(1)^(2)+2gh" , "A_(1)v_(1)=A_(2)v_(2)`
Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise EXERCISE - I - (C.W) (TORRICELLI.S THEOREM)|3 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise EXERCISE - I - (C.W) (COEFFICIENTY OF VISCOSITY & VISCOUS FORCE)|2 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise EXERCISE - I - (C.W) (PRESSURE AND PASCAL.S LAW)|9 Videos

  • MATHEMATICAL REVIEW & PHYSICAL WORLD

    NARAYNA|Exercise C.U.Q|13 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    NARAYNA|Exercise LEVEL-II (H.W)|24 Videos

Similar Questions

Explore conceptually related problems

In the previous question, at the mouth of the tap the area of cross-section is 2.5 cm^2 and the speed of water in 3 m//s . The area of cross-section of the water column 80 cm below the tap is.

Water from a tap emerges vertically downward with an initial speed of 1.0ms^(-1) . The cross-sectional area of the tap is 10^(-4) m^(2) . Assume that the flow is steady. What is the cross-sectional area of the stream 0.15 m below the tap? Use g=10 ms^(-2) .

Water from a tap of cross sectional area 1 cm^2 starts falling down vertically, with a speed of 1m//s . What is the area of cross section of the stream of water at a distance of 20cm below the mouth of the tap? [Assume that (1) the flow is steady, (2) pressure is constant throughout the stream of water and g= 10m//s^2 ]

The level of water in a tank is 5 m high. A hole of area of cross section 1 cm^(2) is made at the bottom of the tank. The rate of leakage of water for the hole in m^(3)s^(-1) is (g=10ms^(-2))

Water is filled in a cylindrical container to a height of 3m . The ratio of the cross-sectional area of the orifice and the beaker is 0.1 . The square of the speed of the liquid coming out from the orifice is (g=10m//s^(2)) .

A cylindrical tank is filled with water to a level of 3m. A hole is opened at a height of 52.5 cm from bottom. The ratio of the area of the hole to that of cross-sectional area of the cylinder is 0.1. The square of the speed with which water is coming out from the orifice is (Take g= 10 m//s^(2) )

A pipe with square cross-section is supplying water to a cistern which was initially empty. The area of cross-section is 4 cm² and the nozzle velocity of water is 40 m/s. The dimensions of the cistern are 10 m x 8 m x 6 m. Then the cistern will be full in

The inductance of a solenoid 0.5m long of cross-sectional area 20cm^(2) and with 500 turns is

What is filled in a cylindrical container to a height of 3 m . The ratio of the cross-sectional area of the orifice and the beaker is 0.1 . The square of the speed of the liquid coming out from the orifice is (g = 10 m//s^2) .

Water from a tap emerges vertically downward with an initial speed of 3.0 m/s. The cross-sectional area of the tap is 10^(-4)m^2 . Assume that the pressure is constant throughout the stream of water and that the flow is steady. The cross-sectional area of the stream 2 m below the tap is: