MCQ
The amplitude of a wave represented by displacement equation
$y = \frac{1}{{\sqrt a }}\,\sin \,\omega t \pm \frac{1}{{\sqrt b }}\,\cos \,\omega t$ will be
- ✓$\frac{{\sqrt {a + b} }}{{\sqrt {ab} }}$
- B$\frac{{\sqrt a + \sqrt b }}{{ab}}$
- C$\frac{{\sqrt a - \sqrt b }}{{ab}}$
- D$\frac{{\sqrt {a - b} }}{{\sqrt {ab} }}$
