Q. Which of the following is true?
A) $A \cap \phi = A$
B) $A \cap \phi = \phi$
C) $A \cap \phi = U$
D) $A \cap \phi = A'$
Explanation
(b)
$A \cap \phi = \phi$ is true.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.