What is laser Optics, and where is it used?

 Laser optics is an laser instrumentation that is used to material processing which uses also coatings,substrates,and of different wavelengths of a superior performance

Explanation:

b.a device that inputs heat into a cool object

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.