Menu
Home / General Knowledge / Technology :: Discussion

Discussion :: Technology

  1. What was the active medium used in the first working laser ever constructed?

    2. A.
    A diamond block
    B.
    Helium-neon gas
    C.
    A ruby rod
    D.
    Carbon dioxide gas

    View Answer

    Workspace

    View Answer

    Answer : Option C

    Explanation :

    Theodore Maiman built the first working laser using a ruby rod while working at Hughes Research Laboratories in Malibu, California. It lased for the first time on May 16, 1960.

Write your comments here:

Be The First To Comment