IIT JEE : Fluids At Rest QUESTIONS AND ANSWERS :: part1 : 16 to 20
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
16.In each heart beat, a heart pump 80 ml of blood at an average pressure of 100 mm of Hg. What will be the power output of the heart? (Assume 60 heart beats per minute) |
| 1W |
| 2.75W |
| 1.06W |
| 0.5W |
17.A solid is completely immersed in a liquid. The force exerted by the liquid on the solid will: |
| increase if it is pushed deeper inside the liquid |
| change if its orientation is changed |
| decrease if it is taken partially out of the liquid |
| none of the above |
18.In a steady incompressible flow of a liquid: |
| the speed does not change if the area of cross-section changes |
| the speed increases if the area of cross-section increases |
| the speed decreases if the area of cross-section increases |
| bubbles are produce when the area of the cross-section increases |
19.When a slip floats on water: |
| its displaces no water |
| the mass of water displaced is equal to the mass of the ship |
| the mass of water displaced is lesser than the mass of the ship |
| the mass of water displaced is greater than the mass of the ship |
20.If there were a smaller gravitational effect, which of the following forces do you think would alter in some respect? |
| Viscous force |
| Archimedes uplift |
| Electrostatic force |
| Nuclear force |
More Fluids At Rest QUESTIONS AND ANSWERS available in next pages
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