X-rays are invisible electromagnetic waves of high energy and short wavelengths lie between the wavelengths of gamma rays and the ultraviolet rays, Rontgen discovered invisible electromagnetic waves of short wavelength ranges from 10−13 m...
Quantum physics is the physics that allows us to study and explain scientific phenomena which might not be directly observed in our daily life especially when we deal with atomic and subatomic systems such...
Light is an essential form of energy , The Sun is the most important source of light energy , It is the main natural source , It gives us heat & light , where...
There are two types of motion , which are Translational motion and Periodic motion , Translational motion is the motion that has starting point and end point , Periodic motion is the motion that repeats itself...
Nuclear reactions are different from the chemical reactions , Since chemical reactions occur between the atoms of the reactant elements by the binding between the electrons of the outermost energy levels & no change...
The light waves The light is an electromagnetic wave , It is a form of energy that can travel freely across space , where the light rays travel through the vacuum present in the...
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