Dear Student ,
Here is a link which will help you to solve this question with proper explanation .
https://www.meritnation.com/ask-answer/question/q-the-stationary-wave-produced-on-a-string-is-represente/wave-optics/12008653
Regards
Here is a link which will help you to solve this question with proper explanation .
https://www.meritnation.com/ask-answer/question/q-the-stationary-wave-produced-on-a-string-is-represente/wave-optics/12008653
Regards