Question

How does a laser-ranging device work?

Answer 1

The laser-ranging device uses a laser beam that travels to a reflector and reflects back onto it. The laser ranging device can detect and measure changes in the reflector.

Step-by-step explanation:

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Answer 2

A global network of observation stations measures the round trip time of flight of ultrashort pulses of light to satellites equipped with retroreflectors.
powerful source of data for studies of the solid Earth and its ocean and atmospheric systems