Register to reply 
Showing that the inverse sqaure law is true. 
Share this thread: 
#1
Dec1505, 07:14 PM

P: 387

Is there a theoretical way to show that the inverse square law is true for say, just electric fields alone, without referring to any empirical observation?



#2
Dec1505, 11:18 PM

Sci Advisor
HW Helper
P: 3,146

The short answer is "no." One can come up with various arguments based on geometry and other concepts that make inverse square seem plausible but they are meaningless without the data. Moreover, we know inverse square is wrong anyway particularly when dealing with very massive objects and cosmological scales.



#3
Dec1605, 05:42 AM

Sci Advisor
HW Helper
PF Gold
P: 12,016

Laws in physics are true (or valid) because we see (or hear or smell or register in some other manner) that they hold in reality.
There doesn't really exist any other criterion for the (ultimate) truth of a postulated law. 


#4
Dec1605, 05:44 AM

Emeritus
Sci Advisor
PF Gold
P: 6,236

Showing that the inverse sqaure law is true.
Laws in physics are true when there is concensus amongst the knowledgeable members of PF that they are true



#5
Dec1605, 06:31 AM

P: 194

Wait a second; you can't show this based on quantum electrodynaimcs?



Register to reply 
Related Discussions  
IMP: chi sqaure & the confidence interval  Engineering, Comp Sci, & Technology Homework  2  
Chi sqaure & confidence interval  Calculus & Beyond Homework  4  
Transformation of unit sqaure to circle  Precalculus Mathematics Homework  6  
Having troubles showing A has no inverse or finding the inverse, matrices.  Introductory Physics Homework  0 