Laser beams are used to measure long distances because

The laser beam can be used to measure large distances because it is :

A laser beam is used for locating distant objects because

A laser beam is used for locating distant object because it

Lasers are used in

Which units are used to measure laerge distance i.e. distance of planets and stars? Which method is used for measurement?

A LASER is a source of very intense, monochromatic, and unidirectional beam of light. These properties of a laser light can be exploited to measure long distances. The distance of the Moon from the Earth has been already determined very precisely using a laser as a source of light. A laser light beamed at the Moon takes 2.56 s to return after reflection at the Moon’s surface. How much is the radius of the lunar orbit around the Earth ?