Question

power set of null set is ..

Answer 1

It is the set containing the null set. Since the powerset is the set of all subsets, and the empty set contains no elements, its only subset is the entire set itself. Taken together, they give aleph null - countable infinity - the smallest infinite ordinal

Answer 2

Answer:

Power set of a Null set is { Φ } or { { } }

Let, a null set be 'S'=Φ

then, P(A)={ Φ } or P(A)= { { } }