Question

what are the conditions for the radiation to be EM in nature​

Answer 1

Explanation:

EM radiation is so-named because it has electric and magnetic fields that simultaneously oscillate in planes mutually perpendicular to each other and to the direction of propagation through space. ✓ Electromagnetic radiation has the dual nature: its exhibits wave properties and particulate (photon) properties.

Electromagnetic (EM) radiation is a form of energy that is all around us and takes many forms, such as radio waves, microwaves, X-rays and gamma rays. Sunlight is also a form of EM energy, but visible light is only a small portion of the EM spectrum, which contains a broad range of electromagnetic wavelengths.