What part of the electromagnetic spectrum can penetrate all human skin and soft tissue?

The electromagnetic spectrum is made up of seven types of waves, they are: radio, microwave, infra red, visible lights, ultraviolet, X ray and gamma ray. The electromagnetic waves have both electric and magnetic properties and they can travel through vacuum. The waves have different properties and diverse uses.

The part of the electromagnetic spectrum that can penetrate all human skin and soft tissues is X RAY. X ray have short wavelength and it can penetrate soft tissues such as skin and muscles. Because of this property, it is typically used in the health care system to take X ray pictures of bones; the pictures help the health care providers in their diagnosis.

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