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Physics

Physics
Air pressure is measured in which of the following units?

Kg/mts
Steridian
Pascal
Newton

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Physics
Suppose voltage V is applied across a resistance R. The power dissipated in the resistance is P. Now the same voltage V is applied across a parallel combination of three equal resistors each of resistance R. Then the power dissipated in the second case will be

3P
P/3
2p/ 3
P

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Physics
A nuclear reactor is said to have become 'critical' when

It starts emitting dangerous radioactive radiations
It is ready to produce controlled energy
It stops due to malfunctioning
It is shut down to avoid explosion

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Physics
An instrument that records earthquakes is

Thermograph
Seismograph
Ergograph
Ediograph

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Physics
If the temperature of a place increases suddenly, the relative humidity

Decreases
Increases
Fluctuates
Remains constant

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Physics
The motion of a body that repeats itself after a regular interval of time is

A periodic motion
An aperiodic motion
An oscillatory motion
A simple harmonic motion

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