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Physics

Physics
Who among the following discovered X-rays?

W.C Roentgen
J.J Thomson
James Chadwick
Marie Curie

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Physics
The colour of sky appears blue due to

Refraction
Dispersion
Scattering of shorter wave lengths
Reflection

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Physics
As we go from Equator to North pole the value of ''g', the acceleration due to gravity

Increases
Remains the same
None of these
Decreases

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Physics
Gasoline is useful in cars because it has

Electrical potential energy
Kinetic energy
Chemical potential energy
Gravitational potential energy

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Physics
At low temperature, Lead behaves as a :

Superconductor
Semi conductor
Conductor
Insulator

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Physics
What is the reason for formation of Mirage in desert?

Refraction of light
Both Refraction and Total internal reflection of light
Total internal reflection of light
Reflection of light

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