Yes The intersection of any two disjoint sets is a null set
if two sets dont have any common element  then their intersection doesnot have any element Therefore its intersection is a null set
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The two sets which do not have atleast one common element is said to be disjoint sets.
intersection means the set of common elements in the given two sets.
null set means an empty set
since there are no common elements present in the disjoint sets , the intersection of disjoint sets is always a null set