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Water falls from a tap, down the streaml...

Water falls from a tap, down the streamline

A

Area decreases

B

Area increases

C

Velocity remains same

D

Area remains same

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Water falls from a top, down the streamline

    A
    Area decreases
    B
    Area increases
    C
    Velocity remains same
    D
    Area remains same
  • In a streamline flow

    A
    the speed of a particle always remains same
    B
    the velocity of a particle always remains same
    C
    the kinetic energies of all particles arriving at a given point are the same
    D
    the potential eneergies of all the particles arriving at a given point are the same
  • Along a streamline,

    A
    the velocity of a fluid particle remains constant
    B
    the velocity of all fluid particle crossing a given position is constant
    C
    the velocity of all fluid particles at a given instant is constant
    D
    the speed of a fluid particles remains constant
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    If water falls from a tap, then the volume rate of flow of water at depth of h, ( A_0 is the area of cross-section of the mouth and A_0/2 is the corresponding area at depth h)

    Water drops fall from a tap on to the floor 5.0 m below at regular intervals of time. The first drop strikes the floor when the fifth drops beings to fall. The height at which the third drop will be from ground at the instant when the first drop strikes the ground is (take =g=10 m^(-2) )

    Water falls from a tap with A_(0)=4 m^(2) , A=1 m^(2) and h=2 m, then velocity v is

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    The figure shows the commonly observed decrease in diameter of a water stream as it falls from a tap. The tap has internal diameter D_(0) and is connected toa large tank of water. The surface of the water is at a height b above the end of the tap. By considering the dynamics of a thin "cylinder" of water in the steam answer the following: (ignore any reistance to the flow and any effects of surface tansion, given rho_(w) = density of water) A student observes after setting up this experiment that for a tap with D_(0) = 1 cm at x = 0.3 m the stream diameter D = 0.9 cm . The heights b of the water above the tap in this case will be: