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Physics

Physics
Forged documents are detected by

Gamma rays
Infra-red rays
Ultraviolet rays
Beta rays

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Physics
Flywheel is an important part of a steam engine because it :

Gives strength to the engine
Decreases the moment of inertia
Accelerates the speed of the engine
Helps the engine in keeping the speed uniform

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Physics
What is the source of energy for the water cycle?

Animals
Rain water
Sun
Clouds

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

Protons
Ions
Electrons
Holes

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Physics
If an object moves with constant velocity,

It must have constant speed in constant direction
It must have constant direction
It must have constant speed
None of these

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Physics
Rate at which velocity changes over time?

Jerk
Acceleration
Displacement
Speed

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MORE MCQ ON Physics

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