The term LASER stands for Light Amplification by Stimulated Emission of Radiation.

Option 1, "Light Amplification by Stimulated Emission of Radiation," is the correct answer. This option accurately represents the acronym LASER and provides a clear explanation of how lasers work.

Option 2, "Light Amplification by Spontaneous Emission of Radiation," is incorrect. While spontaneous emission of radiation does play a role in laser operation, it is the stimulated emission that is primarily responsible for the amplification of light in a laser.

Option 3, "Light Amplification by Stimulated Emission of Rays," is a slight variation of the correct answer. The term "rays" can be used to describe light, so this option is not entirely wrong. However, the term "radiation" is more commonly used and accepted in the context of laser technology.

Option 4, "Light Amplification by Stimulated Energy of Radiation," is not an accurate representation of the acronym LASER. While lasers do use energy to produce light, the term "stimulated emission" specifically refers to the amplification process in a laser.

Overall, option 1 is the correct answer as it accurately represents the acronym LASER and provides the most precise explanation of how lasers function