9. The liquid meniscus in capillary tube will be convex, if the angle of contact is
(a) Greater than
(b) Less than 90°
(c) Equal to 90°
(d) Equal to 0°
Ans. a
(4)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)