Question

two main features of laser rays

Answer 1

1) Directional;laser emits light that is highly directional.Laser light is emitted as a relative narrow beam in a specific direction.Ordinary light,such as coming from the sun,a light bulb,or a candle,is emitted in many directions away from the source.

2) The physical size of a laser depends on the materials used for light emission,on its power output,and on whether the light is emitted in pulses or as a steady beam.

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Answer 2

Cohorent

Monochromatic

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