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Sets and Relations — Applied Maths STD 11 Science — Question

CBSE BoardEnglish MediumSTD 11 ScienceApplied MathsSets and Relations1 Mark
MCQ
The power set of $A=\phi$ is
  • ✓
    $\{\phi\}$
  • B
    $\{0\}$
  • C
    $\{\phi,\{0\}\}$
  • D
    none of these
✓

Answer

Correct option: A.
$\{\phi\}$
(A) $\{\phi\}$
Explanation : As only subset of $\phi$ is $\phi$, thus $P(A)=\{\phi\}$

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