MCQ
The resultant amplitude of amplitude $a_1$ and $a_2$ with same frequency while phase difference $\frac{\pi}{2}$.
  • A
    $a_1+a_2$
  • B
    $a_1-a_2$
  • $\sqrt{a_1^2+a_2^2}$
  • D
    $a_1^2-a_2^2$

Answer

Correct option: C.
$\sqrt{a_1^2+a_2^2}$
(C)

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