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Physics

Physics
The minimum number of geostationary satellites needed for uninterrupted global coverage is :

3
2
4
1

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Physics
The moment of inertia of a body does not depend upon its

Angular velocity
Distribution of mass
Axis of rotation
Form of mass

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Physics
Eddy current is generated by

Conduction
Convection
Induction
Direct Current

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Physics
At what temperature (in degree Celsius), the numerical values on Celsius and Fahrenheit scales become equal?

273
–273
–40
40

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Physics
The scientist who first sent electromagnetic waves to distant places is

Thomas Alva Edison
Heinrich Hertz
John Logie Baird
James Clerk Maxwell

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Physics
The mercury and sodium street lamps light up because of :

Electron emission
Electron absorption
Atomic absorption
Atomic emission

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