is it a physical law for an object who can make anything invisible?

Question

a law like E=mc² some thing like that.

Answer 1

For a large object to be invisible, all parts of it must be transparent and have a refractive index equal to that of the surrounding environment, presumably air. A windstorm qualifies, in general. Small objects (say, bacteria) are invisible because our eyes aren't designed to detect the small amount of visible light they reflect or block.

Answer 2

You should define invisible more clearly ;-)

Seriously though, there is no given object that can make another object invisible, except by blinding the observer. Also, the are meta-materials constructed to have a negative refractive index and thus have really strange properties.

Answer 3

Nope..