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What is the dimensions of surface tension

Posted by Vishnu Singhal 6 years ago

CBSE > Class 11 > Physics

1 answers

Yogita Ingle 6 years ago

Surface Tension

Surface tension is the property of the liquid surface which arises due to the fact that surface molecules have extra energy.
Surface energy is the extra energy which the molecules at the surface have.
Surface tension is the property of the liquid surface because the molecules have extra energy.
Surface energy is defined as surface energy per unit area of the liquid surface.
Denoted by ’S’.
Mathematically :-
- Consider a case in which liquid is enclosed in a movable bar.
- Slide the bar slightly and it moves some distance (‘d’).
- There will be increase in the area, (dl) where l=length of the bar.
- Liquids have two surfaces one on the bar and other above the bar. Therefore area=2(dl)
- Work done for this change =Fxdisplacement.
- Surface tension(S)=Surface Energy/area
- Or Surface Energy=S x area
- =Sx2dl
- Therefore S x 2dl =F x d
S = F/2d

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What is the scientific name of lion

Posted by Vishnu Singhal 6 years ago

CBSE > Class 11 > Biology

3 answers

Manoj K 6 years ago

Panthera leo

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Tanya Chaudhary 6 years ago

Panthera leo

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Yogita Ingle 6 years ago

Panthera leo is the scienctific name of lion.

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Essay on balance is beneficial

Posted by Navya Jain 6 years ago

CBSE > Class 11 > Other Subjects

0 answers

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if the properties of a company. are insufficient to repay all its debt can the balance amount be repaid with the private properties of the members of that company give reason

Posted by Raju Raju 6 years ago

CBSE > Class 11 > Business Studies

2 answers

Sakshi Singh 6 years ago

No it is not possible because in case of company form of business all the members have limited liability

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Yogita Ingle 6 years ago

No, it is not possible because the liability of all members of the company is limited to the extent of amount invested by them in the company. So, their private assets will not be involved in this situation.

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List four features of Indian Constitution that give greater power to the central government than the state government

Posted by Sahil Sabras 6 years ago

CBSE > Class 11 > Political Science

0 answers

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Project file

Posted by Lenovo Note 6 years ago

CBSE > Class 11 > इतिहास

0 answers

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What is fictitious asset????

Posted by Chandan Vishwakarma 6 years ago

CBSE > Class 11 > Accountancy

1 answers

Vivek Kanojiya 6 years ago

Deffered revenue expenditure are treated as fictitious assets.

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How is the concept of Universe shown through landscape by Wu daozi

Posted by Yash Kushwaha 6 years ago

CBSE > Class 11 > English Core

1 answers

Srima Shruthi M 6 years ago

The mountain is yang - reaching vertically towards heaven, stable warm and dry in the sun,while the water is yin - horizontal and resting on the earth, fluid, moist and cool.

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False line and kinked line are same

Posted by Amit Kumar 6 years ago

CBSE > Class 11 > Economics

0 answers

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Is the miscellaneous of conic sections(class 11th) is removed by cbse for the session 2019-20

Posted by Dhruv Bansal 6 years ago

CBSE > Class 11 > Mathematics

2 answers

Robinpreet Kaur 6 years ago

Yaaa

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Soumyadeep Paul 6 years ago

In 11th class all Miscellaneous examples and exercises are Exam point of view

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what are various type of season ? discuss at least three characteries of all the seasons ?

Posted by Harsh Ambawata 6 years ago

CBSE > Class 11 > Geography

0 answers

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what is climate change ? descuss the impacts of climate change ?

Posted by Harsh Ambawata 6 years ago

CBSE > Class 11 > Geography

1 answers

Nancy Sah 5 years, 11 months ago

A phenomenon which occurs in the atmosphere which changes over a very long period of time. And impacts of climate change are -Temperature will continue to rise, melting of glacier, rise in sea level, loss of biodiversity, increase in precipitation etc.

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I have to make a project on Animal Kingdom ,Plant Kingdom and Biological classification. please give me answer How should I make it. please answer me fast because i have only 4 days. Help me pleaaase..

Posted by Hareem Naaz 6 years ago

CBSE > Class 11 > Biology

1 answers

Ibthisam Sharieff 6 years ago

For animal kingdom: take 10 boxes, amd write the name of each phylum there. Take some 30 to 40 flashcards which have unique properties of some phyla or different animal names. Then ask your class to classify these cards into those 10 boxes. For biological classification: Make a model of herbaria to explain isotype and lectotype, collect pictures of dead species in a meuseum, and make a chart on taxonomic key, you may get this model of taxonomic key from previous years NSO paper also. For plant kingdom: write names of plants on flash cards, from different divisions, and ask your classmates to classify them as haplontic, diplontic, and haplo-diplontic. Include excetions like sargassum and fucus which are algae but still haplo-diplontic, and laminarin, ectocarpus, dictyota which are again algae, but still diplontic. Long answer, but I hope it helps:)

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Point R(h,k) divides a line segment b/w the axis in the ratio 1:2 find equation of a line

Posted by Minku Sharma 6 years ago

CBSE > Class 11 > Mathematics

0 answers

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Is the title "the ghat of the only world" justified?

Posted by Aditi Goel 6 years ago

CBSE > Class 11 > English Core

3 answers

Jap Purba 6 years ago

The title is quite justified. Here the author has compared life with a water body and birth is taken as one end and death another .In hindi the shore of a river is called ghat and hence death is called the ghat of the only world ,only world here means the only world known to us - i.e,our own little world.

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Aditi Goel 6 years ago

I have checked the syllabus nd that's why I am asking this question

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Harshit Babu 6 years ago

Ye chapter syllabus me nahi hai .so you must check syllabus at once

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What is negative fitbackw machnism

Posted by Avinandan Kumar Paswan 6 years ago

CBSE > Class 11 > Biology

1 answers

Yogita Ingle 5 years, 11 months ago

Negative feedback mechanism:

Whenever there is a change in the normal state, the messages are sent to ‘increase’ secretions if there is a fall below normal or to ‘decrease’ secretions if there is a rise above normal to restore the normal body state. Such a mechanism is called a negative feedback mechanism.

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Short defination of DOUBLE ENTRY SYSTEM

Posted by Manish Bansal 6 years ago

CBSE > Class 11 > Accountancy