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Physics

Physics
Acceptable noise level for human ear

< 85 db
= 85 db
> 85 db
None of these

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Physics
The oil in the wick of an oil lamp rises up due to:

Pressure difference
Gravitational force
Low viscosity of oil
Capillary action

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Physics
The SI unit of resistance is:

Coulomb
Joule
Ohm
Newton

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Physics
The electric current in a metal wire is due to the flow of -

Holes
Ions
Protons
Electrons

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Physics
Speed in a given direction is called

Velocity
Acceleration
Torque
Displacement

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Physics
What is the escape velocity of the rocket in the earth?

11.2 km/sec
10.2 km/sec
13.2 km/sec
12.2 km/sec

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