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Standard VIII

Physics

Pressure in Fluids

A water tank ...

Question

Question 7

A water tank has four taps fixed at points A, B, C, D as shown in Fig. The water will flow out at the same pressure from taps at

(a) B and C
(b) A and B
(c) C and D
(d) A and C

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Solution

(a) B and C

Since, B and C are at same level, hence both will be at same pressure.

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Similar questions

Q. A water tank has four taps fixed at points A, B, C, D as shown in Fig. 11.4. The water will flow out at the same pressure from taps at

Question 7

A water tank has four taps fixed at points A, B, C, D as shown in the figure. The water will flow out at the same pressure from taps at

(a) B and C
(b) A and B
(c) C and D
(d) A and C

Q. 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 to a 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 stream answer the following: (ignore any resistance to the flow and any effects of surface tension, given

ρ_{w}

density of water)
1. Which of the following equation expresses the fact that the flow rate at the tap is the same as at the stream point with diameter D and velocity v (i.e. D in terms of

D_{0}

v_{0}

and v will be):

Q. Two taps

A

and

B

fill a water tank together in

6

hours. Alone, it takes tap

A

5

hours less than

B

to fill the same tank. How many hours does

A

tap to fill the tank separately?

Q. A fixed thermally conducting cylinder has a radius

R

and height

L_{0}

. The cylinder is open at its bottom and has a small hole at its top. A piston of mass

M

is held at a distance

L

from the top surface as shown in Fig. The atmospheric pressure is

p_{0}

.
The piston is taken completely out of the cylinder. The hole at the top is sealed. A water tank is brought below the cylinder and put in a position so that the water surface in the tank is at the same level as the top of the cylinder as shown in Fig. The density of the water is

ρ

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of the water column in the cylinder satisfies.

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Question 7 A water tank has four taps fixed at points A, B, C, D as shown in Fig. The water will flow out at the same pressure from taps at (a) B and C (b) A and B (c) C and D (d) A and C

(a) B and C ​​​​​​​ Since, B and C are at same level, hence both will be at same pressure.

Question 7

A water tank has four taps fixed at points A, B, C, D as shown in Fig. The water will flow out at the same pressure from taps at

(a) B and C
(b) A and B
(c) C and D
(d) A and C

(a) B and C

Since, B and C are at same level, hence both will be at same pressure.