Question 27
WavesWhich of the following is a characteristic of stationary waves?
- A.The antinode is a point of minimum displacement.
- B.The distance between two successive nodes is one wavelength.
- C.They are formed by two identical waves travelling in opposite directions.
- D.They can be transverse or longitudinal.
Show the answer and explanation
Answer: C (They are formed by two identical waves travelling in opposite directions.)
Explanation
A stationary wave forms when two identical waves travel in opposite directions and superpose. Antinodes have maximum displacement and nodes are half a wavelength apart.