Question

Check the correctness of the relation: Height of liquid in capillary, h = 2TCosθ/ r p g
where T is the surface tension, p is density of liquid and r is the radius of the capillary tube

Answer 1

Answer:

$h= ρrg2Scosθ​ LHS=[L]Surface tension =S=F/I= LMLT −2 ​ =[MT −2 ]Density =ρM/V=[ML −3 T 0 ]Radius =r=[L],g=[LT −2 ]RHS= ρrg2Scosθ​ = [ML −3 T 0 ][L][LT −2 ][MT −2 ]​ =[M 0 L 1 T 0 ]=[L]LHS=RHSSo, the relation is correct.$

Explanation: