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PHYSICS

Physics
The fact that the planets move around the Sun, not in circles but in ellipses, was first demonstrated by

Martin Luther
Galileo
Johannes Kepler
Copernicus

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Physics
A bomb explodes on the moon. You will hear its sound on earth after ________

3.7 hours
20 minutes
2 hours 20 minutes
You cannot hear the sound of explosion

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Physics
Stars are held together by

Gravitational forces
Magnetic forces
Electrical forces
Ionic forces

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

1
4
2
3

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Physics
The Law of Kepler is related with which among the following ?

Planetary Motion
None
Law of Conservation of energy
Law of Gravitation

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