What does the term 'a' represent in the wave equation y(x,t) = a sin(kx - ωt + φ)? - OSCILLATIONS AND WAVES Quiz | GKFix.in

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Question

What does the term 'a' represent in the wave equation y(x,t) = a sin(kx - ωt + φ)?

A. Wave speed
B. Frequency
C. Wavelength
D. Amplitude