  The ${^{\rm nat}\rm{Mo}}(\gamma,x\rm np)^{95\rm m,g}$Nb photonuclear reaction
was studied using the electron beam from the NSC KIPT linear accelerator
LUE-40. Experiment was performed using the activation and off-line $\gamma$-ray
spectrometric technique. The experimental isomeric yield ratio $d(E_{\rm{\gamma
max}}) = Y_{\rm m}(E_{\rm{\gamma max}}) / Y_{\rm g}(E_{\rm{\gamma max}})$ was
determined for the reaction products $^{95\rm m,g}\rm{Nb}$ at the end-point
bremsstrahlung energy $E_{\rm{\gamma max}}$ range of 35-95 MeV. The obtained
values of $d(E_{\rm{\gamma max}})$ are in satisfactory agreement with the
results of other authors and extend the range of previously known data. The
theoretical values of the yields $Y_{\rm m,g}(E_{\rm{\gamma max}})$ and the
isomeric yield ratio $d(E_{\rm{\gamma max}})$ for the isomeric pair $^{95\rm
m,g}\rm{Nb}$ from the ${^{\rm nat}\rm{Mo}}(\gamma,x\rm np)$ reaction were
calculated using the partial cross-sections $\sigma(E)$ from the TALYS1.95 code
for six different level density models $LD$. The comparison showed a noticeable
excess (more than 3.85 times) of the experimental isomeric yield ratio over all
theoretical estimates. At the investigated range of $E_{\rm{\gamma max}}$ the
theoretical dependence of $d(E_{\rm{\gamma max}})$ on energy was confirmed -
the isomeric yield ratio smoothly decreases with increasing energy.
