Question

What is the definition of light?

Answer 1

Light:

1. Light is a type of electromagnetic radiation that allows the human eye to see or makes objects visible.
2. It is also defined as visible radiation to the human eye. Photons, which are tiny packets of energy, are found in light.
3. Light always moves in a straight line.
4. Light travels at a faster rate than sound. The speed of light is $3\times {10}^8\frac{\text{m}}{\text{s}}$.
5. Light is a transverse wave that travels without the use of a medium.
6. Light does not require a physical medium to travel. That is, it can also move through a vacuum.