Question

check correctness of an equation
$v = 2\pi \sqrt{l \div g}$

Answer 1

hey, mate here is ur solution
we can check correctness of give equation by using dimensions
dimensions of velocity= [LT^-1]
dimensions of length=[L]
and dimensions of g =[LT^-2]

[LT^-1]=2π√[L/LT^-2]
[LT^-1]=[T]
so, the formulla is dimensionally incorrect