Light can travel through free space as it is electromagnetic waves that don’t need a medium to travel through, Light waves are considered as electromagnetic waves because light waves can propagate through a vacuum,...
Laser amplifies the light intensity by the stimulated emission, There are different applications of laser in life either in the branch of applied science such as medicine, engineering and communication or in the branch...
Any metal contains positive ions & free electrons which can move around inside the metal but can not leave it due to the attractive forces of the surface which may be represented by a...
The electric circuits The electric circuit is known as a closed and continuous path through which, the electricity will pass making a complete cycle. The simple electric circuit The simple electric circuit consists of...
