set 2 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 2 EXERCISES
The following question based on physical properties of materials topic of general science mcq
(a) fall a little
(b) rise a little
(c) remain stationary
(d) None of these
The correct answers to the above question in:
Answer: (c)
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Read more physical properties of materials Based General Science Questions and Answers
Question : 1
In solids, interatomic forces are
a) totally attractive
b) totally repulsive
c) combination of (a) and (b)
d) None of these
Answer »Answer: (c)
Question : 2
Pressure inside a soap bubble is
a) Less than atmospheric pressure
b) Equal to atmospheric pressure
c) More than atmospheric pressure
d) Half of atmospheric pressure
Answer »Answer: (c)
Question : 3
Small droplets of a liquid are usually more spherical in shape than larger drops of the same liquid because
a) force of surface tension predominates the force of gravity
b) force of surface tension is equal and opposite to the force of gravity
c) force of gravity predominates the force of surface tension
d) force of gravity and force of surface tension act in the same direction and are equal
Answer »Answer: (a)
Question : 4
A needle sinks in water whereas a ship made of iron floats on it because
a) The ship is flat
b) The ship driver, by power flat engine
c) The edge of the needle is pointed
d) Specific gravity of the needle is greater than that of water displaced by it
Answer »Answer: (d)
Question : 5
Surface tension of a liquid is due to
a) electrical force between molecules
b) gravitational force between molecules
c) adhesive force between molecules
d) cohesive force between molecules
Answer »Answer: (d)
Surface tension of a liquid is due to force of attraction between like molecules of a liquid i.e. cohesive force between the molecules.
Question : 6
Kerosene oil rises up in a wick of a lantern because of
a) surface tension
b) diffusion of the oil through the wick
c) buoyant force of air
d) the gravitational pull of the wick
Answer »Answer: (a)
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