What is electromagnetic radiation? Is itlight?

Electromagnetic radiation is a type 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 electromagnetic energy, but visible light is only a small portion of the electromagnetic spectrum, which contains a broad range of electromagnetic wavelengths.

Yes, light is a type of electromagnetic radiation. Visible light, as perceived by human eyes, is electromagnetic radiation with wavelengths between approximately 400 and 700 nanometers. Other types of electromagnetic radiation, like radio waves, are outside the visible spectrum, so while they are not visible to the human eye, they are still classified as light.