MCQ
$2$ particles $p$ and $q$ describe $SHM$ of same amplitude $a$ and same frequency $f$ along straight line, the maximum distance between the two particle $a\sqrt 2 $ . The initial phase difference between particle is
- AZero
- ✓$\frac{\pi }{2}$
- C$\frac{\pi }{6}$
- D$\frac{\pi }{3}$


