explain the inverse square rule
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The inverse square rule ,in general terms, states that when any physical quantity is doubled then the other quantity which is related to the first quantity by the inverse square rule would get one forth.
Eg:The formula for calculating gravitational force between two bodies is given by:
F = G Mm/d^2
Now it is clear that F is related to 1/d^2
F is directly proportional to 1/d^2
This means that when force gets doubled, that distance between the bodies gets reduced by (1/2)^2=1/4 tines the actual distance.
Also, if the distance gets doubled the force gets reduce by 1/4. So in inverse square rule, it any quantity is increased by n times, then the relayed quantity gets reduced by (1/n^2).
Eg:The formula for calculating gravitational force between two bodies is given by:
F = G Mm/d^2
Now it is clear that F is related to 1/d^2
F is directly proportional to 1/d^2
This means that when force gets doubled, that distance between the bodies gets reduced by (1/2)^2=1/4 tines the actual distance.
Also, if the distance gets doubled the force gets reduce by 1/4. So in inverse square rule, it any quantity is increased by n times, then the relayed quantity gets reduced by (1/n^2).
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