set 2 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) Melting point of ice remains unchanged with increase in pressure
(b) Melting point of ice increases with increase in pressure
(c) Melting point of ice is lowered with increase in pressure
(d) Melting point of ice is 0°C
The correct answers to the above question in:
Answer: (c)
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Read more physics concept Based General Science Questions and Answers
Question : 1
If the moon is to escape from the gravitational field of the earth forever, it will require a velocity
a) slightly more than 111.2 km/s
b) less than
c) 11.2 km/s
d) 22.4 km/s
Answer »Answer: (c)
Question : 2
Raw mangoes shrivel when pickled in brine. The phenomenon is associated with
a) increase of surface tension of fluid
b) reverse osmosis
c) osmosis
d) decrease of surface tension of fluid
Answer »Answer: (c)
Question : 3
Consider a satellite going round the earth in a circular orbit. Which of the following statements is wrong?
a) It is acted upon by a force directed away from the centre of the earth which counter-balances the gravitational pull.
b) It is moving with constant speed
c) It is a freely falling body.
d) It is an accelerated motion
Answer »Answer: (a)
Question : 4
Assertion (A) :
With the increase of temperature, the viscosity of glycerine increases.
Reason (R) :
Rise of temperature increases kinetic energy of molecules.
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: (d)
Question : 5
Two objects of different masses falling freely near the surface of moon would
a) experience forces of same magnitude
b) have different accelerations
c) have same velocities at any instant
d) undergo a change in their inertia
Answer »Answer: (c)
Question : 6
Flow velocities in an incompressible fluid can be measured with which one of the following?
a) Strain gauge
b) Venturi tube
c) Barometer
d) Manometer
Answer »Answer: (b)
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