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Physics

Physics
Which measurement describes the pressure of a gas?

450 mm Hg
251 g/cub.cm
315 K
None of these

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Physics
Green house effect is the heating up of the Earth's atmosphere which is due to

X-rays
The ultraviolet rays
The infra-red rays
G-rays

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Physics
An object that has kinetic energy must be

Falling
At rest
Moving
At an elevated position

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Physics
Find the acceleration (in m/s2) of a body which accelerates from 25 m/s to 30 m/s in 10 seconds

1
0.5
5.5
11

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Physics
What is the unit of relative density?

It has no unit
Kg/m3
Kg/m
Kg/m2

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Physics
For which one of the following, ''Diodes' are generally used for?

Filtration
Rectification
Modulation
Amplification

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