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Physics

Physics
Sound becomes hazardous noise pollution at decibels?

Above 80 db
Above 50 db
Above 120 db
Above 30 db

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Physics
The rotational effect of a force on a body about an axis of rotation is described in terms of

Centripetal force
Centrifugal force
Moment of force
Centre of gravity

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Physics
The resistance of a conductor is inversely proportional to its:

Length
Temperature
Resistivity
Area of cross section

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Physics
Mist is caused by

Ice at low temperature
Carbon-monoxide in solid form
Water vapour at low temperature
Dry ice

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Physics
An object covers distance which is directly proportional to the square of the time. Its accelaration is

Constant
Zero
Increasing
Decreasing

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Physics
How much mechanical work must be done to completely melt 1 gram of ice at 0°C ?

2268 J
336 J
80 J
4.2 J

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MORE MCQ ON Physics

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