Question
Fri April 18, 2014 By: Jayant Jain

Matter is defined as anything that occupies space and has mass,so i was wondering whether it was possible for anything to occupy space and not have mass or for something to have mass but not occupy any space?

Expert Reply
Sat April 19, 2014
It is not possible for something to occupy space and not have mass or for something to have mass but not occupy any space and be called as 'matter'. It is against the fundamentals of physics as matter is something that occupies space and has mass.
Also, anything that would have had mass but would occupy no space, would have infinite density.
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