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) upper hole will fall farther than that from the lower hole
(b) both the holes will fall at the same spot
(c) upper hole will fall closer than that from the lower hole
(d) more information is required
The correct answers to the above question in:
Answer: (b)
Velocity of water from hole
A = $v_1 = √{2gh}$
Velocity of water from hole B = $v_2 = √{2g(H_O -h)}$
Time of reaching the ground from hole
B= $t_1 = √{{2g(H_O -h)}/g}$
Time of reaching the ground from hole A = $t_2 = √{{2h}/g}$
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Read more physical properties of materials Based General Science Questions and Answers
Question : 1
A tank filled with water has a hole at a certain height from its bottom. The volume of water emerging out per second from the hole does not depend on
a) the area of a hole.
b) the height of the level of liquid above the hole.
c) the density of a liquid.
d) the acceleration due to gravity.
Answer »Answer: (c)
Volume per second = A$√{2gh}$
Question : 2
While travelling by plane, the ink of the pen starts to come out
a) Due to increase in air pressure
b) Due to increase in volume of ink
c) Due to decrease in air pressure
d) Due to excessive load
Answer »Answer: (c)
Question : 3
With the rise of temperature, the viscosity of liquid
a) Decreases
b) Remains unchanged
c) Increases
d) May increase or decrease depending on nature of liquid
Answer »Answer: (a)
Question : 4
Kerosene oil floats on water because
a) Its density is less than the density of water
b) Its density is equal to that of the density of water
c) Its density is greater than the density of water
d) None of the above
Answer »Answer: (a)
Question : 5
Increasing the amount of a substance does not change its
a) Weight
b) Mass
c) Volume
d) Density
Answer »Answer: (d)
Question : 6
The action of a nib split at the top is explained by
a) diffusion of fluid
b) gravity flow
c) capillary action
d) osmosis of liquid
Answer »Answer: (c)
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