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HomePhysics16. If the surface of a liquid is plane, then the angle of contact of the liquid with the walls of container is

16. If the surface of a liquid is plane, then the angle of contact of the liquid with the walls of container is

(a)  Acute angle

(b)  Obtuse angle

(c)  90°

(d)  0°

Ans. (d) Tangent drawn at point of contact makes 0° with wall of container.

(9)

5/5 - (1 vote)

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12. An ideal gas is taken through the cycle A→ B → C → A, as shown in the figure. If the net heat supplied to the gas in the cycle is 5 J, the work done by the gas in the process C → A is

(a)      – 5 J (b)  – 10 J (c)   – 15 J (d)  – 20 J Answer-a (126)

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