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Physics

Physics
In SONAR which kind of wave is used?

Audible sound
Infrasonic
Radio
Ultrasonic

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Physics
What type of heat transfer is boiling water?

Conduction
None of these
Convection
Radiation

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Physics
What is unit of Astronomical distance ?

Angstrom
Light year
Lux
Weber

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Physics
Surface tension in a liquid is due to :

Cohesive force between molecules
Electrical force between molecules.
Gravitational force between molecules
Adhesive force betweenmolecules

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Physics
After reflection from a plane mirror the word will look like.

AWBULANCE
AMBULA CE
ECNALUBMA
AMBULANCE

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Physics
The velocity of sound in moist air is more than in dry air because the moist air has

More density than dry air.
Less pressure than dry air.
Less density than dry air.
More pressure than dry air.

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