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Physics

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

Smog
All of these
Droplets
Humidity

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Physics
Which compressor is usually used in AC?

Rotary
Axial
Centrifugal
Reciprocating

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Physics
Water from soil enters into the root hairs owing to :

Osmotic pressure
Atmospheric pressure
Root pressure
Capillary pressure

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Physics
Which of the following principle is used to produce ''low-temperatures' ?

Thermo-electric effect
Adiabatic demagnetisation
Super conductivity
Joule-Kelvin effect

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Physics
The earth-wire of a cable is connected to

The fuse of the appliance
The filament of the appliance
The outer metallic body of the appliance
Short circuitry of the appliance

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Physics
The electric current in a metal wire is due to the flow of -

Protons
Ions
Holes
Electrons

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MORE MCQ ON Physics

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