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A liquid does not wet the sides of a solid , if the angle of contact is 

Option: 1

Zero 


Option: 2

obtuse 


Option: 3

Acute 


Option: 4

90


Answers (1)

best_answer

As we have learned 

Ascent Formula -

For \Theta < 90^{\circ}

For \Theta > 90^{\circ}

For \Theta = 90^{\circ}

- wherein

meniscus (concave) \rightarrow Rise

meniscus (convex) \rightarrow Fall

meniscus (Plane) \rightarrow Plane

 

 FOr obtuse angle , the liquid will fall and hence its a non weting liquid 

 

Posted by

Ritika Harsh

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