set 1 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) Bernoulli’s law
(b) Boyle’s law
(c) Newton’s laws of motion
(d) Archimedes’ principle
The correct answers to the above question in:
Answer: (a)
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Read more physical properties of materials Based General Science Questions and Answers
Question : 1
The rain drops falling from the sky neither injure us nor make holes on the ground because they move with
a) variable acceleration
b) constant acceleration
c) variable speed
d) constant terminal velocity
Answer »Answer: (a)
Question : 2
In a capillary tube a fluid rises more as compared to water, it is due to
a) Temperature of fluid is more than that of water
b) Surface tension of fluid is less than that of water
c) Fluid is more viscous than that of water
d) Surface tension of fluid is more than that of water
Answer »Answer: (d)
Question : 3
The bulk modulus for an incompressible liquid is
a) unity
b) zero
c) infinity
d) between 0 and 1
Answer »Answer: (c)
Bulk modulus = $\text"Pressure"/\text" Volume Strain" =\text"Pressure"/0$
Bulk modulus = ∞
[As liquid is uncompressible, ΔV=0 ]
Question : 4
Houses far from the municipal water tank find it difficult to get water on the top floor even if their ceilings are lower than the level of water filled in tank. Its reason is
a) pipes are less wide.
b) pipes are more wide.
c) when water flows there is loss of pressure.
d) None of these
Answer »Answer: (c)
Question : 5
An ice cube is floating in a glass of water. What happens to the water level when the ice melts? It
a) Falls
b) Remains the same
c) Rises
d) First rises and then falls
Answer »Answer: (b)
Question : 6
Why it is easier to swim in the sea than in a river?
a) The sea water is deep
b) The sea water is heavier
c) The sea water is salty
d) The sea water is lighter
Answer »Answer: (c)
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