Buoyancy or Up thrust
Buoyancy or Up thrust
BUOYANCY or UP THRUST: The tendency of a liquid to exert an upward force on an object immersed in it is called buoyancy. Liquid pressure is measured with manometer. A liquid exerts pressure in all directions i.e. downward, upward and sideways. The pressure is the same in all directions at the same depth. Pressure increases with depth. From all the above examples, we conclude that the objects appear to be less heavy when submerged in water than they are in air. It is due to the fact that the water exerts an upward force on them.
In fact, every liquid exerts an upwards force on the objects immersed in it. The tendency of a liquid to exert an upward force or an object placed in it, is called buoyancy. And thus, the upward force acting on an object immersed in a liquid is called buoyant force. In other words, the buoyant force is also known as up thrust.
Two pieces of metal when immersed in a liquid have unequal upthrust on them, then: | |||
| Right Option : C | |||
| View Explanation | |||
Two pieces of metal when immersed in a liquid have equal upthrust on them ; then | |||
| Right Option : C | |||
| View Explanation |
When a body is wholly or partially immersed in a liquid, it appears to lose weight. This loss of weight is equal to the weight of | |||
| Right Option : B | |||
| View Explanation |
Students / Parents Reviews [10]
About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
