set 1 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 2 EXERCISES
The following question based on force of gravity, solids and fluids topic of general science mcq
(a) Fe
(b) quartz
(c) rubber
(d) Cu
The correct answers to the above question in:
Answer: (b)
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Read more physics concept Based General Science Questions and Answers
Question : 1
A geostationary satellite
a) must move on an axis in the equatorial plane
b) must move about the polar axis
c) can move about any axis
d) both (b) and (c)
Answer »Answer: (a)
Question : 2
In respect of the difference of the gravitational force from electric and magnetic forces, which one of the following statements is true ?
a) Gravitational force has a very short range.
b) Gravitational force is attractive only, whereas the electric and the magnetic forces are attractive as well as repulsive.
c) Gravitational force is stronger than the other two.
d) Gravitational force is a long range force, while the other two are short range forces.
Answer »Answer: (b)
Question : 3
An artificial satellite orbiting the earth does not fall down because the earth’s attraction
a) is balanced by the viscous drag produced by the atmosphere
b) vanishes at such distances
c) is balanced by the attraction of the moon
d) produces the necessary acceleration of its motion in a curved path
Answer »Answer: (d)
Question : 4
The specific gravity of a substance is measured by a hydrometer at the sea level. If the measurement is done at the top of a mountain, what would be the specific gravity ?
a) Less than that measured at the sea level
b) More than that measured at the sea level
c) Zero
d) Same as that measured at the sea level
Answer »Answer: (a)
Question : 5
Assertion (A) :
The weight of a body decreases with the increase of altitude on earth.
Reason (R) :
The earth is not a perfect sphere.
a) A is true but R is false
b) Both A and R are true but R is not a correct explanation of A
c) Both A and R are true and R is the correct explanation of A
d) A is false but R is true
Answer »Answer: (b)
Question : 6
If a gas is heated at constant pressure its isothermal compressibility
a) decreases with temperature
b) remains constant
c) increases with temperature
d) decreases inversely with temperature
Answer »Answer: (b)
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