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Why in inverse square law we use r*2 this is also used in universal law of gravitation

Why in inverse square law we use r*2 this is also used in universal law of gravitation 

Grade:11

1 Answers

Pawan Prajapati
askIITians Faculty 60787 Points
3 years ago
Answer ::

an inverse-square law is any scientific law stating that a specified physical quantity is inversely proportional to the square of the distance from the source of that physical quantity.
Light intensity decreases with distance from source to receiving surface (sink), and the rate of decrease is in proportion to the square of the distance between emitter and receiver. This is called the Inverse Square Law.

In universal law of gravity, Newton realized that gravity is a force that exists between any two particles, no matter how big and small, and no matter how far apart they were. But the more massive they are, the larger the force, and the closer they are, the larger the force.
It is the dependence on
in the denominator that makes this an inverse square law. The law implies that if we go twice as far from a planet, the force of gravitational attraction is only 1/4 what it was.


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