Question

Standing waves are formed on a string when interference occurs between two waves having

• A. The same amplitude travelling in the same direction with no phase difference between them
• B. The same amplitude, travelling in the opposite direction with no phase difference between them
• C. Different amplitudes travelling in the same direction
• D. Different amplitudes travelling in the opposite direction

Answer 1

The correct option is B The same amplitude, travelling in the opposite direction with no phase difference between them

Standing waves are formed whenever two waves of identical frequency and same amplitude interfere with one another while travelling opposite directions along the same medium.

Hence, option B is correct answer.