Question

Please give correct answer​

Answer 1

Answer:

D) in air the speed of sound will be fastest

Answer 2

$\large\boxed{\fcolorbox{red}{pink}{any~solid~object}}$

$\red{\longrightarrow}$Sound travels as longitudinal waves .

$\red{\longrightarrow}$As particles in a solid are closer to each other & it'll be passed to each other more efficiently .

$\mathcal\pink{KEEP~~SMILING}$