Fluid Mechanics - Exercise (Part 4) - Questions 26 To 35| Class 11 Physics Ch 13 (HC Verma) JEE/NEET
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✅ In this video,
✔️ Class: 11th
✔️ Subject: Physics (HC Verma) JEE/NEET
✔️ Chapter: Fluid Mechanics (Chapter 13)
✔️ Topic Name: Fluid Mechanics - Exercise (Part 4)
✔️ Topics Covered In This Video (By Ashish Sir): Fluid Mechanics - Exercise (Part 4) from Fluid Mechanics, Class 11 Physics HC Verma Chapter 13 has been discussed in this video.
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00:00 Introduction :Fluid Mechanics - Exercise (Part 4)
00:54 Exercise :From Questions 26 To 35
1:52:54 Website Overview
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Que. 26 A U-tube containing a liquid is accelerated horizontally with a constant acceleration a0. If the separation between the vertical limbs is l, find the difference in the heights of the liquid in the two arms.
Que. 27 At Devprayag (Garhwal) river Alaknanda mixes with the river Bhagirathi and becomes river Ganga. Suppose Alaknanda has a width of 12 m, Bhagirathi has a width of 8 m and Ganga has a width of 16 m. Assume that the depth of water is same in the three rivers. Let the average speed of water in Alaknanda be 20 km h–1 and in Bhagirathi be 16 km h–1. Find the average speed of water in the river Ganga.
Que. 28 Water flows through a horizontal tube of variable cross-section (figure). The area of cross-section at A and B are 4 mm2 and 2 mm2 respectively. If 1 cc of water enters per second through A, find (a) the speed of water at A, (b) the speed of water at B and (c) the pressure difference PA- PB.
Que. 29 Suppose the tube in the previous problem is kept vertical with A upward but the other conditions remain the same. The separation between the cross sections at A and B is 15/16 cm. Repeat parts (a), (b) and (c) of the previous problem. Take g 10 m s2.
Que. 30 Suppose the tube in the previous problem is kept vertical with B upward. Water enters through B at the rate of 1 cm3 s-1. Repeat parts (a), (b) and (c). Note that the speed decreases as the water falls down.
Que. 31 Water flows through a tube shown in figure. The areas of cross-section at A and B are 1 cm2 and 0.5 cm2 respectively. The height difference between A and B is 5 cm. If the speed of water at A is 10 cm s-1, find (a) the speed at B and (b) the difference in pressures at A and B.
Que. 32 Water flows through a horizontal tube as shown in figure. If the difference of heights of water column in the vertical tubes is 2 cm, and the areas of cross-section at A and B are 4 cm2 and 2 cm2 respectively, find the rate of flow of water across any section.
Que. 33 Water flows through the tube shown in figure. The areas of cross-section of the wide and the narrow portions of the tube are 5 cm2 and 2 cm2 respectively. The rate of flow of water through the tube is 500 cm3 s–1. Find the difference of mercury levels in the U-tube.
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