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Physics

Physics
The boiling point of water depends upon the

Density
Mass
Atmospheric pressure
Volume

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Physics
Sound waves cannot travel in

Vacuum
Glass
Water
Hydrogen gas

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Physics
The base of an electric iron is brightly polished mainly

To make it smooth and frictionless
To make it more durable
To reduce heat loss by radiation
To make it rust-proof

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Physics
The type of mirror used in automobiles to see the traffic on the rear side is

Plane
Convex
Plano-Convex
Concave

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

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

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Physics
Atomic packing factor of body centred cubic structure (bcc) is

0.63
0.68
0.69
0.73

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MORE MCQ ON Physics

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