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Physics

Physics
Which colour has the highest frequency?

Red
Indigo
Violet
Green

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Physics
The ordinary and maximum tolerance limit of sound by human being is

50 db to 70 db (decibel)
60 db to 80 db (decibel)
70 db to 85 db (decibel)
65 db to 75 db (decibel)

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Physics
The earth-wire of a cable is connected to

The outer metallic body of the appliance
The filament of the appliance
The fuse of the appliance
Short circuitry of the appliance

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Physics
The wave like properties of electrons are useful in

Lasers
All of these
Magnifying objects
Weather reports

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Physics
Who defined the law of gravitation ?

Galileo
Newton
Faraday
Archimedes

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Physics
According to special theory of relativity the mass of a particle

Decreases with increase in velocity.
Is independent of its velocity.
Decreases with decrease in velocity.
Increases with increase in velocity with respect to an observer.

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