The distance from Earth to the Moon can be accurately calculated by pointing high-powered lasers onto the Moon’s surface. The time it takes for the light to return is used to find the distance. To make this possible, astronauts on the Apollo 11 Moon mission had to place a device on the Moon that would ?
store the laser light for future use. bounce the laser light back to Earth. allow the laser light to pass through. change the frequency of the laser light.

bounce the laser light back to Earth

Explanation:

The Lunar laser ranging retroreflector was used for the first time in the Apollo 11 launch mission. Later,  it was used during the Apollo 14 and Apollo 15 mission.

The laser reflectors are made of the reflecting mirrors which can reflect the laser light in the same direction from where it is coming. These devices were placed on the moon during the mission and are used till today.

The laser light is pointed from the Earth to the device placed on the moon which reflects or bounce the light back to the Earth. This takes the time and the total time is measured and is used to calculate the distance between the Earth and the Moon, to calculate the rotation of the Moon and many other factors related to the Moon.

Thus, the selected option is the correct answer.

tube or goog will be great resources to find the answer to the question that you're asking

b.a device that inputs heat into a cool object