X-rays are used in photographing bones because they detect the bone fractures. Gamma rays have medical purposes because they are used to treat and discover some swellings (tumors). Exposing dental treatment tools for ultraviolet...
The weight of the object at the south pole is greater than its weight at the equator because the Earth’s gravitational acceleration at the south pole is greater than the Earth’s gravitational acceleration at...
Electromagnetic waves are formed when an electric field couples with a magnetic field. The magnetic and electric fields of electromagnetic waves are perpendicular to each other and to the direction of the wave. Mechanical...
