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Physics

Physics
The word "Physics" comes from the Greek word

Fusis
Phiji
None of these
Phusik

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Physics
Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to:

The heating effect of current alone
Both the heating effect of current and hysteresis loss
Intense sunlight at noon
Hysteresis loss alone

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Physics
The unit of intensity of electric field is

N/m
J/c
N/c
Volt

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Physics
Hot water is poured simultaneously in four metallic tumblers painted outside with different points. After some time the water will be found to have cooled most in the tumbler painted.

Rough white
Rough black
Shining white
Shining black

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Physics
The part of the eye having the largest refractive index is :

Lens
Aqueous humor
Cornea
Vitreous humor

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Physics
A system exhibiting S.H.M. must possess

Elasticity, inertia and an external force
Inertia only
Elasticity only
Elasticity as well as inertia

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