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Physics

Physics
An object which absorbs all colours and reflects none appears:

White
Grey
Black
Blue

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Physics
Moment of inertia is:

Tensor
Scalar
Vector
Phasor

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Physics
The material used in electric heater is

Tungsten
Brass
Steel
Nichrome

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Physics
The instrument which uses sound waves to measure the depth of oceans is

Venturimeter
Radar
Altimeter
Sonar

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Physics
When a detergent is added to pure water, its surface tension

Remains constant
Decreases
Becomes infinite
Increases

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Physics
When an electric bulb breaks, there is an explosive sound. That is due to

The chemical reaction between the gases inside the bulb
The air outside rushing in to fill the vacuum inside the bulb
None of these
The compressed gases inside rushing out suddenly

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