85.Powder clings to the skin because of
   (a) cohesion
   (b) adhesion
   (c) capillary action
   (d) absorption
Ans: (b)
86.The fact that two large ships travelling on close parallel courses in the same
   direction tend to move towards each other can be explained by
   (a) Bernoulli"s principle
   (b) Magnetic properties of the ship"s material
   (c) Newton"s third law of motion
   (d) Earth"s gravitational force
Ans: (a)
87.A man weighing 50 kg floats on water in a lake. His apparent weight is
   (a) 50 kg
   (b) 45 kg
   (c) zero
   (d) 150 kg
Ans: (c)
88.A man stands on the pan of a balance holding a fish in his right hand and
   bucket of water in his left hand. If he transfers the fish into the bucket, the
   total weight on the pan
   (a) increases
   (b) decreases
   (c) remains the same
   (d) first increases and then decreases
Ans: (c)
89.The attraction between similar molecules is called
   (a) inertia
   (b) adhesion
   (c) cohesion
   (d) friction