Question

describe the origin of UV-VIS spectrum

Answer 1

Answer:

Light is a form of energy, when matter absorbs light the energy content of the molecules (or atoms) increases.

The amount of energy a molecule possesses in each form is not continuous but occurs in a series of discrete levels or states. The difference in energy is in the order.

Answer 2

Explanation:

light is a form of energy and matter absorbs light the energy content of the molecules increases and some molecules photos of UV and visible light have enough energy to cause transitions between the different electronic energy levels