  The calculation of lepton decay constants and electromagnetic form factors of
pion and kaon is performed in the framework of relativistic hamiltonian
dynamics. The different model wave function is used. Wave function parameters
are fixed from fit of mean square radius of meson. The internal quark structure
is taken into account by electromagnetic quark form factor and quark anomalous
magnetic moment. The pion and kaon form factors depend only weakly on model
wave function. Strong dependence of these values on quark anomalous magnetic
moment is obtained in the transfer momentum region of CEBAF experiments.
