The velocity of water waves may depend on their wavelength . The density of water and the acceleration due to gravity g. The method of dimensional analysis gives which of the following relation between these quantities?
the dimensional formulas are as follows:
v^2= [L^2T^-2]
lambda= [L]
density= [ML^-3] and accn= [LT^-2]
arranging these we get the formula as option (2)