Surface Tension
1)Why are rain drops spherical in shape?
  

2)The force of cohesion is maximum in ________.
  

3)Which of the following liquids show capillary depression?
  

4)Where do we find adhesive force?
  

5)Choose the correct statement.
  

6)Liquids which have more adhesive force than cohesive force show ________.
  

7)What is the angle of contact for water and glass?
  

8)What happens in the capillary rise of a liquid, when the radius of the capillary tube increases?
  

9)When there are no external forces, what is the shape of a liquid drop determined by?
  

10)If the angle of contact between a solid and a liquid is 90⁰, then:
  


  


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