Small droplets of a liquid are usually more spherical in shape than larger drops of the same liquid because
(a) force of surface tension is equal and opposite to the force of gravity
(b) force of surface tension predominates the force of gravity
(c) force of gravity predominates the force of surface tension
(d) force of gravity and force of surface tension act in the same direction and are equal
Answers
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option a)
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Answer:
'b' option is correct
Explanation
Larger droplet has a greater mass. Since the quantity of water is more, the force of pulling due to surface tension on one side of the droplet fails to hold the other side due to increased mass, therefore gravity predominates and hence the droplets turn oval in shape. In the case of smaller droplets, since the quantity of liquid is less, the force of surface tension holds the drop in place.
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