Question

in audible sound example​

Answer 1

$\small{\fcolorbox{red}{indigo}{\small{\fcolorbox{red}{violet}{\small{\fcolorbox{red}{pink} {\small{\fcolorbox{red}{red}{\small{\fcolorbox{red}{springgreen}{\small{\fcolorbox{red}{blue}{\small{\fcolorbox{red}{yellow} {\small{\fcolorbox{red}{azure} {\small{\fcolorbox{red}{blue}{\small{\fcolorbox{red}{orange}{\huge{\fcolorbox{red}{green}{\large{\fcolorbox{blue}{red}{{\fcolorbox{orange}{aqua}{ANSWER♡}}}}}}}}}}}}}}}}}}}}}}}}}}$

Sound from Bell.

Answer 2

Answer:

Waves of a musical instrument like punu