Write short note on working principle of (i) He-Ne Laser (ii) CO2 Laser.

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"Meet Mr. Akhand Dutta, the visionary Founder and Owner of CEWA (Civil Engineering With Akhand Dutta). Currently, The Placement Coordinator for Structural Engineering at the prestigious National Institute of Technology, Kurukshetra. With a lif…

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Write short note on working principle of (i) He-Ne Laser (ii) CO2 Laser.

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A point P is 50 mm away from both the reference planes. Draw its all possible projections.

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