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Physics

Physics
As water is cooled from 4 deg C to 0 deg C, its density

Remains same
Decreases
Increases
None of these

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Physics
The device used for measuring the wavelength of X-rays is

G.M. Counter
Cyclotron
Mass Spectrometer
Bragg Spectrometer

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Physics
The absolute zero is a temperature at which ________

All gases become solid
All gases become liquid
Water freezes
Molecular motion in a gas would cease

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Physics
If electric resistance is to be decreased, then the number of resistances should be connected in ________

Mixed arrangement
Parallel
None of these
Series

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Physics
Propagation of sound can be visualised as propagation of ________ variations in the medium

Elasticity
Viscosity
Density
Porosity

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Physics
Amount of water vapour in the atmosphere is measured in terms of

Smog
All of these
Humidity
Droplets

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