Ever wondered what law perspective follows?

Anyone ever wondered what law pespective follows? If there is one... I mean a relationship between apparent height and real height over a distance. I was going to try an experiement if I ever get round to it. I'll be disapointed if its just another inverse square law :biggrin:
 
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I just did a quick exp then and I think its a linear relationship.
 
I tried it with the lights at work and it didn't seem to be I'll try again lol
 
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Well i held a phone x distance awy nad held a ruler to my eye and measured the apparent height, and then i moved the phone 2x away and the height increased lineraly (i think!)
 
Hmm found a ruler. I seem to get it as it halfs with doubling the distance. So is that 1/d? Can't think tonight.
 
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Yep - linear relationship

Apparent height = k/distance

where k is a constant
 

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