Question

Amplitude of vibration of any particle in a standing wave produced along a stretched string depends on

• A. frequency of incident wave
• B. time of reflected wave
• C. location of the particle
• D. time

Answer 1

The correct option is C location of the particle

for a standing waves $y=a\sin \frac{2\pi x}{\lambda }\cos \frac{2\pi vt}{\lambda }$
Amplitude is given as $A=a\sin \frac{2\pi x}{\lambda }$
Thus, amplitude depends on the location of the particle.