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Physics

Physics
Which of the following is a conductor of electricity ?

Pure water
Salt water
Rubber
Benzene

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Physics
Which of the following pair is Incorrect?I. Parsec - DistanceII. Barrel - LiquidIII. Light year - Time

Only I and III
All are correct
Only III
Only II

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Physics
The pitch of sound depends on its

Velocity
Amplitude
Intensity
Frequency

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Physics
The device used to change the speed of an electric fan is

Amplifier
Regulator
Rectifier
Switch

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Physics
When the main switch of the house is put off it disconnects the

Live wire and the neutral wire
Earth wire and the neutral wire
Live wire only
Live wire and the earth wire

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Physics
Water is used in car radiator because of its

Low density
Low boiling point
Easy availability
High specific heat capacity

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MORE MCQ ON Physics

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