# NEET Physics Waves Questions Solved

Wave equations of two particles are given by ${y}_{1}=a\mathrm{sin}\left(\omega \text{\hspace{0.17em}}t-kx\right)$, ${y}_{2}=a\mathrm{sin}\left(kx+\omega \text{\hspace{0.17em}}t\right)$, then

(1) They are moving in opposite direction

(2) Phase between them is 90°

(3) Phase between them is 180°

(4) Phase between them is 0°