Question

Which of the following statements is incorrect for a stationary wave?

• A. Every particle has a fixed amplitude which is different from the amplitude of its nearest particle.
• B. All the particles cross their mean position at the same time
• C. All the particles are oscillating with same amplitude
• D. There is no net transfer of energy across any plane

Answer 1

Answer: (C)

All the particles are oscillating with same amplitude

Answer 2

Node means the point at which the medium particles do not displace from its mean position. Also, antinode means a point at which particles oscillate with maximum possible amplitude. Nodes and antinodes are available for both types of stationary waves. Every particle having a fixed amplitude. Also, all the particles cross their mean position at a certain time. Also, there is no transfer of energy is possible across any plane for stationary waves. Therefore, the third statement is incorrect.