Answer
422.7k+ views
Hint: In this question we have to apply the concept of the surface tension acting on a liquid when an experiment is conducted with it. We have to find what happens if the same experiment is conducted in outer space in an artificial satellite which is revolving around the earth.
Complete step by step answer:
In a surface tension experiment the water rises to a height of 5 centimetre when the experiment is done on earth.
But we have to consider the case when the same experiment is being conducted on an artificial satellite in outer space. In such a condition there is no effective Gravity in outer space. The force exerted by the surface tension will not be balanced by the weight of the liquid. And the force of surface tension will be an unbalanced force.
The force exerted due to the surface tension is given by the following expression:
$S.T\,Force = 2\pi rT\cos \theta $
In this expression, $\theta $ is the angle the surface makes with the wall of the tube.
Since the surface tension force will be unbalanced in outer space the surface tension will exert as much force as possible, corresponding to which the water level will rise to the very top. After reaching the top, the angle between the wall and the liquid becomes ${90^ \circ }$ and when the angle becomes ${90^ \circ }$ then the value of the force becomes zero because $\cos {90^ \circ }$ is zero and liquid stops at that point. Therefore, the liquid rises up to the full length of the tube in which the experiment is being conducted.
The correct option is option (D).
Note:
These types of questions can be answered with basic understanding of the situation. Since any gravity is not present in outer space the surface tension will be an unbalanced force. Students should be able to make this kind of assertion and then the question can be easily solved by them.
Complete step by step answer:
In a surface tension experiment the water rises to a height of 5 centimetre when the experiment is done on earth.
But we have to consider the case when the same experiment is being conducted on an artificial satellite in outer space. In such a condition there is no effective Gravity in outer space. The force exerted by the surface tension will not be balanced by the weight of the liquid. And the force of surface tension will be an unbalanced force.
The force exerted due to the surface tension is given by the following expression:
$S.T\,Force = 2\pi rT\cos \theta $
In this expression, $\theta $ is the angle the surface makes with the wall of the tube.
Since the surface tension force will be unbalanced in outer space the surface tension will exert as much force as possible, corresponding to which the water level will rise to the very top. After reaching the top, the angle between the wall and the liquid becomes ${90^ \circ }$ and when the angle becomes ${90^ \circ }$ then the value of the force becomes zero because $\cos {90^ \circ }$ is zero and liquid stops at that point. Therefore, the liquid rises up to the full length of the tube in which the experiment is being conducted.
The correct option is option (D).
Note:
These types of questions can be answered with basic understanding of the situation. Since any gravity is not present in outer space the surface tension will be an unbalanced force. Students should be able to make this kind of assertion and then the question can be easily solved by them.
Recently Updated Pages
Mark and label the given geoinformation on the outline class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
When people say No pun intended what does that mea class 8 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Name the states which share their boundary with Indias class 9 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give an account of the Northern Plains of India class 9 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Advantages and disadvantages of science
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Bimbisara was the founder of dynasty A Nanda B Haryanka class 6 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
10 examples of evaporation in daily life with explanations
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
How do you graph the function fx 4x class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)