Chapter 9, Problem 2STP

To determine

To choose: The correct option.

Answer to Problem 2STP

Option A.

Explanation of Solution

Introduction:

The maximum displacement of medium particle from its mean position displaced by a wave travelling through the medium is called amplitude of the wave.

The given figure represents a sinusoidal wave.

  

When a wave travels through any medium, the energy of wave displace the medium particle from it’s rest position and the maximum displacement attained by the medium particle is called amplitude of the wave. Here $G$ is representing amplitude of the wave. So, the option A is correct.

Wavelength is distance between crest and trough. So, the option B is incorrect.

Crest is top most part of wave and trough is lower most part of the wave. So, the option C and D are incorrect.

Conclusion:

Thus, the option A is correct.