Question

The formation of a standing wave requires _____.

Answer 1

the formation of a standing wave requires interferencethe incoming and reflected waves of the same frequency

Answer 2

Answer: The correct answer is "interference between the incoming and reflected waves of the same frequency"

Explanation:

Standing wave: Standing wave will form when two waves of equal frequency travelling in an opposite direction in the same medium.  There is interference between the incoming and reflected waves of the same frequency.

These waves do not appear to move. There is an oscillation up and down in same phase. Standing wave consists of node and antinode.

Anti node: It is the location in the wave where the amplitude is minimum.

Node: It is the location in the wave where the amplitude is maximum.

Therefore, the correct option is "interference between the incoming and reflected waves of the same frequency ".