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Biology, 13.01.2021 14:00 med69

1.I was invented in the 1960s. 2.I am well known for the light I produce.
3.My light is monochromatic and coherent.
4.It has high intensity and low divergence.
5.Because of these properties, It is used in cutters, DVD player and surgery.
So who am I?

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1.I was invented in the 1960s. 2.I am well known for the light I produce.
3.My light is monoc...
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