Resistivity By Four Probe Method

Introduction With more than 3 decades of experience in the field of manufacturing optical components & instruments, we, Optiregion, are counted among the top notch business entities of the industry. Our company was established by Mr. C. S. Dahiya in 1977, with an objective to provide impeccable quality optical systems to the clients. Within a short span of time, we became widely renowned and started supplying our products to DRDO Laboratories, National Laboratories like National Physical Laboratory, Colleges and Universities as well as Engineering Colleges such as National Institute of Technology(s) and I.I.T.(s) in India. In the year 1980, we developed He-Ne Laser and conducted various experiments using laser as a source of light.