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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
Copernicus
Johannes Kepler
Galileo

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

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

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Physics
Stars are held together by

Magnetic forces
Electrical forces
Ionic forces
Gravitational forces

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

2
1
3
4

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

Planetary Motion
Law of Conservation of energy
Law of Gravitation
None

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