20:20

lecture 29|Ray optics|boards 12th|IIT NEET| Er Santosh Kumar@magnetacademy413

23:21

lecture 27|Ray optics| IIT NEET board|Er Santosh Kumar @magnetacademy413

17:51

lecture 26|Ray optics|board| IIT NEET| Er Santosh Kumar @magnetacademy413

22:35

lecture 30|Ray optics|boards 12th|IIT NEET| Er Santosh Kumar@magnetacademy413

34:08

lecture 25| Ray optics|board 12th| IIT NEET|Er. Santosh Kumar @magnetacademy413

31:13

lecture 23| Ray optics|dispersive power||board|12th| IIT- NEET|Er.santosh Kumar @magnetacademy413

17:16

lecture 21|Ray optics| 12th | IIT NEET| Er. Santosh Kumar|boards

15:48

lecture 22|Ray optics|IIT NEET|board 12th|Er. Santosh Kumar @magnetacademy413