Compared to the energy put into a laser,the energy of the laser beam is
A)more.
B)less.
C)the same.

Question

Quizplus · Accepted Answer

A laser beam typically has lower energy than the energy put into the laser. This is due to losses that occur during the process of lasing, such as absorption by the laser medium, reflection and scattering by optical components, and conversion to heat. Therefore, the laser energy is typically less than the electrical or optical energy input.

Compared to the Energy Put into a Laser,the Energy of the Laser