Question

Standing wave can be produced
I) when two identical waves with a phase difference are moving in the same direction
II) when two identical waves with a phase diff. are moving in opposite direction
III) When two identical waves with phase diff zero are moving in the opposite direction
IV) when two identical waves with phase difference zero are moving in the same direction
Choose the correct option

Answer 1

Explanation:

II) when two identical waves with a phase diff. are moving in opposite direction