I am ABU OBAIDA. I have 10 years of experience on Physics Lecture. After that I have completed post Graduate Diploma in Information Technology from Khulna Univ.
 
 
 Khulna .Bangladesh. Now I am practicing about Physics , Optical Instruments, Solid sate of Physics .
  
my ph. no-8801714352926 n email- obaida1914@gmail.com