Who invented the LASER?

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Who invented the LASER? A. Sir Frank Whittle B. Fred Morrisson C. Charles H Townes D. Seymour Cray Check Answer Complaint Here As Incorrect Question / Answer

Related Questions Why laser is used in the pipe alignment ? A. They are coherent B. They are directional in nature C. They are monochromatic D. None of the above Check Answer Complaint Here As Incorrect Question / Answer What was the active medium used in the first working laser ever constructed? A. A diamond block B. Helium-neon gas C. A ruby rod D. Carbon dioxide gas Check Answer Complaint Here As Incorrect Question / Answer Which one of the following uses 'Laser' technology to store large amount of information? A. Floppy disc B. Hard disc C. CD-ROM D. ED-ROMs Check Answer Complaint Here As Incorrect Question / Answer The first step to getting output from a laser is to excite an active medium. What is this process called? A. Pumping B. Exciting C. Priming D. Raising Check Answer Complaint Here As Incorrect Question / Answer Recently which country ronald drever, the co-founder of laser interferometer gravitational wave observatory (LIGO), has passed away? A. Italy B. Lebanon C. United Kingdom D. Ukraine Check Answer Complaint Here As Incorrect Question / Answer

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