📢 1800+ Railway Questions & RRB Study Material🚀
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For the following questions answer them individually
Sound travels faster in ?
air
a vacuum
water
steel
The scientist to first introduce the concept of inertia was ?
Newton
Galileo
Aristotle
Copernicus
Since which year Economics has been included for award in Nobel Prize ?
1970
1968
1967
1969
All of the following are found in chromosomes except ?
Proteins
RNA
DNA
Histones
A body is floating in water at 4°C If temperature reaches 100°C then the body will ?
sink fully
float freely
have some more part of itself submerged under water
have no change in its position
The source of solar energy is ?
Nuclear fission
Nuclear fusion
Sinking of the sun
None of these
The brightest color emitted by the sun is ?
Green-blue
Violet
Red
Yellow-green
A sudden fall in barometer reading indicates
clear weather
hailstorm
storm
heavy rainfall
The Chemical name of table salt is ?
potassium chloride
sodium chloride
calcium chloride
sodium hyposulphate
Which matter is used in storage batteries ?
Copper
Lead
Aluminium
Zinc
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