Question

2020 - 20
The speed of sound in air depends upon the elasticity coefficient of medium and density . establish formula for speed of sound by dimensional method?​

Answer 1

Explanation:

Elastic density of medium = d=mass/length=ML−3

Coefficient of elasticity E=stress/strain  =  ML−1T−2 

let velocity v  be =  dn×Em

     so  L1T−1=M(n+m)×L(−3n−m)×T(−2m) 

   equating the powers of corresponding dimensions

                 n+m=0        so n=−m

               3n+m=−1        =>   n=2−1 and m=21 

So the formula  is :   v=KdE        where  K is a constant

please mark my answer as brainliest