MCQ
Following diagram performs the logic function of


- A$XOR$ gate
- ✓$AND$ gate
- C$NAND$ gate
- D$OR$ gate


Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
${x_1} = a\sin (\omega \,t + {\phi _1})$, ${x_2} = a\sin \,(\omega \,t + {\phi _2})$
If in the resultant wave the frequency and amplitude remain equal to those of superimposing waves. Then phase difference between them is