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Physics

Physics
The S.I. unit of electric charge is :

Kelvin
Ampere
E.s.u
Coulomb

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Physics
Which tube used to produce X-ray?

Coolidge tube
X-ray tube
None of these
Roentgen

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Physics
Who indirectly determined the mass of the electron by measuring the charge of the electron?

Rutherford
Millikan
Thomson
Einstein

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Physics
Surface tension in a liquid is due to :

Adhesive force betweenmolecules
Cohesive force between molecules
Electrical force between molecules.
Gravitational force between molecules

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Physics
The least penetrating power ray is

Alpha rays
Gamma rays
None of these
Beta rays

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Physics
Atomic hydrogen has a life period of

One minute
One day
A fraction of a second
One hour

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