Category: The Waves

Stethoscope 0

The uses and laws of reflection of sound waves

The reflection The reflection is the change in the direction of a wavefront at a interface between two different media so that the wavefront returns into the medium from which it originated such as...

The lasers 0

The importance and medical uses of the laser beams

The laser The laser is a device that emits light through a process of optical amplification based on the stimulated emission of the electromagnetic radiation , The laser is highly coherent , It is...