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) No change
(b) More part of the body will submerge
(c) The body will sink
(d) The body will float freely
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
Ideal liquid is that liquid
a) whose viscosity is zero
b) whose density is zero
c) which is compressible
d) None of these
Answer »Answer: (a)
Question : 2
A container partly filled in a liquid is suspended from a spring balance. A small body is gently dropped in the container. The pointer of spring balance will
a) oscillate
b) read less
c) read the same
d) read more
Answer »Answer: (d)
The pointer of spring balance will read more. The increased reading will be equal to the upthrust given by Archimedes principle.
Question : 3
A sudden fall in barometer reading indicates that the weather will be
a) Rainy weather
b) Cool dry weather
c) Stormy weather
d) Hot and humid weather
Answer »Answer: (c)
Question : 4
For which one of the following capillarity is not the only reason?
a) Rising of underground water
b) Spread of water drop on a cotton cloth
c) Blotting of ink
d) Rising of water from the roots of a plant to its foliage
Answer »Answer: (d)
Question : 5
Two soap bubbles are held by a tube. What will happen ?
a) Air will not travel
b) Air will travel from bigger to smaller bubble
c) Air will travel through tube
d) Nothing can be said
Answer »Answer: (b)
The excess pressure inside a soap bubble is given by,p = ${4T}/r$ As the excess pressure is less in a bigger bubble means the pressure is more inside the bigger bubble.
So, air travels from bigger bubbles to smaller ones.
Question : 6
Construction of submarines is based on
a) Bernoulli's theorem
b) Archimede's principle
c) Pascal's law
d) Newton's laws
Answer »Answer: (b)
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