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Physics

Physics
Who among the following discovered X-rays?

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

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Physics
What is the unit of the physical quantity Entropy?

Watt per kelvin
Joule per kelvin
Newton per kelvin
Pascal per kelvin

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Physics
Which one of the following physical quantities has the same dimensions as that of Planck's constant?

Angular momentum
Linear momentum
Potential energy
Force

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Physics
What is the force of attraction between any two bodies by virtue of their masses is called?

Gravitational Force
Centripetal Force
Electromagnetic Force
Nuclear Force

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Physics
Stars appear twinkling because of ......... of light.

Reflection
Scattering
Absorption
Emission

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Physics
The minimum number of forces to keep a particle in equilibrium is

2
4
1
3

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