Question

A set contains n elements. The power set of this set contains

• A. $n^2$ elements
• B. $2^{\frac{\lambda }{2}}$ elements
• C. $2^n$ elements
• D. n elements

Answer 1

Answer: (C)

$2^n$ elements

$n\left\{P\right(A\left)\right\}=$ $2^n$

number of set having $n$ elements contain $2^n$ elements.