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Physics

Physics
Kilowatt-hour is the unit of :

Energy
Momentum
Power
Force

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Physics
Vehicle tyres are inflated properly

To ensure smooth running.
To allow the vehicle to take more load.
To go fast and save fuel.
To avoid skidding and to minimise friction

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Physics
If we want to calculate the pressure of a liquid at the bottom of a vessel, the quantity which is not required to determine it, is

Surface area of the bottom of the vessel
Density of the liquid
Acceleration due to gravity at the bottom of the vessel
Height of the liquid column

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Physics
The unit of magnetic permeability is

Weber/meter
Henry
Henry/meter
Weber

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Physics
Sun appears red in colour at sunrise and sunset due to

That sun comes out of the mountains
The fact that sun emits only red colour at that time
That all other colours scatter away except red
Red light having longer wave length scatters away

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Physics
Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit

visible light
X-rays
ultraviolet light
radio waves

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MORE MCQ ON Physics

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