hi again,

 

laminar: A thin plate, sheet, or layer

 

what we are actually trying to say that it is a body with length, breadth but negligible width or thickness.....like a sheet of paper.......

 

 

non-laminar is exactly opp to this.....it has all three dimensions; well-defined......like sphere,

 

the significance of this stuff comes into play in Moment of inertia calculations....we say -- find the moment of inertia of a laminar disc abt blah blah blah.......

by saying this we restrict our claculations to 2 D....we're basically neglecting the thickness of the disc.....

 

 

so the MI of a laminar disc is different from a non-laminar one......

 

-Hope that helps!

 

do rate if u r satisfied....

 

cheers!