41. The length of a pipe is 1 km and its diameter is 20 cm. If the diameter of an equivalent pipe is 40 cm, then its length is
42. If the weight of a body immersed in a fluid exceeds the buoyant force, then the body will
43. A liquid would wet the solid, if adhesion forces as compared to cohesion forces are
44. A metal with specific gravity of o floating in a fluid of same specific gravity a will
45. The time oscillation of a floating body with increase in metacentric height will be
46. If the surface of liquid is convex, men
47. In series-pipe problems
48. An ideal flow of any fluid must fulfill the following
49. In a static fluid
50. The motion of air mass in a tornado is a
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