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Nobel Prize winner Charles Townes, who passed away recently, was associated with which one of the following inventions?

a) A) X-rays
b) B) Laser
c) C) ECG
d) D) Xerox Show Answer



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Laser (A) is the answer
1 5 1
Poojan, please answer my question as well... Please...
Charles Townes is associated with laser
1 5 1
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