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Laser is used in LIDAR for what purpose?

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Laser is used in LIDAR for what purpose?

(a) High-Speed Photography

(b) Range finder

(c) Optical Carrier signal

(d) Drilling

I have been asked this question in an online quiz.

The question is from Introduction and Applications of Laser in chapter Laser of Engineering Physics II

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The correct option is (b) Range finder

The best explanation: LIDAR stand for Light Detection and Ranging. Laser is used in LIDAR as range finder. The transit time of transmitted and reflected pulse of laser light is recorded and the distance of the reflecting object is estimated.

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