The Science Quiz: Let there be (coherent) light Premium
The Hindu
The Science Quiz: Let there be (coherent) light
The Science Quiz appears thrice a week in the daily Science page. The page is available to read on all days except Saturday in the epaper.
Q: On May 16 – celebrated as the International Day of Light – in 1963, an American engineer named ________ ______ is believed to have fired the world’s first laser. Fill in the blank.
A: Theodore Maiman
Q: Nearby rays of laser light can travel long distances without getting in each other’s way, i.e. they are highly parallel. Such light is said to be __________. Fill in the blank. Its Latin root word means “directed in a straight line”.
A: Collimated
Q: Every laser consists of a material whose atoms absorb some initial energy and then release it; the output is laser light. What is this material called?
A: Gain
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