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Question
Physics
If a liquid does not wet glass, its angle of contact is :
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Q. If a liquid does not wet glass, its angle of contact is :
BITSAT
BITSAT 2005
A
zero
11%
B
acute
22%
C
obtuse
22%
D
right angle
44%
Solution:
For the liquids, which do not wet the glass, the liquid meniscus is convex upward, so angle of contact is obtuse.