A LASER is source of very intense, monochromatic, and unidirectional beam of light. These proparties of a laser light can be exploited to measure long distnae. The distance of the moon from the Earth hasl beenn already determine very precisly at the moon's surface. How much is the radius of the luuar orbit around the Earth?

Explanation

To determine the radius of the lunar orbit around the Earth using the properties of laser light, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Properties of Laser Light**:
- A laser emits a very intense, monochromatic (single wavelength), and unidirectional (in a single direction) beam of light. These properties allow for precise measurements over long distances.

2. **Identify the Speed of Light**:
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