The speed of a wave produced in water in given by $\mathrm{v}={\mathrm{\lambda }}^{\mathrm{a}}{\mathrm{g}}^{\mathrm{b}}{\mathrm{\rho }}^{\mathrm{c}}$. Where $\mathrm{\lambda }$ , g and $\mathrm{\rho }$ are wavelength of wave, acceleration due to gravity and density of water respectively. The values of a, b and c respectively, are: