T E B R A N IS H L A R VA T O ‘LQ IN LA R X III b o b . M ex an ik te b r a n is h la r .............................................................. 131
X IV b o b . E le k tr t e b r a n is h la r ..................................................................136
XV b o b . T o ‘l q i n l a r ................................................................................... 141
O PTIK A X VI b o b . G e o m e tr ik o p ti k a .................................................................... 145
X V II b o b . YorugMik to 'lq in la ri. N isb iy lik nazariyasi
e l e m e n t l a r i.................................................................................. 156