When two sound waves with a phase difference of $\pi /2$, and each having amplitude $A$ and frequency $\omega $, are superimposed on each other, then the maximum amplitude and frequency of resultant wave is
  • A$\frac{A}{{\sqrt 2 }},\frac{\omega }{2}$
  • B$\frac{A}{{\sqrt 2 }},\omega $
  • C$\sqrt 2 \,A,\frac{\omega }{2}$
  • D$\sqrt 2 \,A,\omega $
Medium
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