Is it true that the wave length of energy radiated from earth back into atmosphere is longer than incoming solar radiation?

Yes, that is true. This is a fundamental concept in the greenhouse effect.

Εδώ είναι η κατανομή:

* Incoming solar radiation: The sun emits radiation primarily in the visible and near-infrared parts of the electromagnetic spectrum. This means the wavelengths are relatively short.

* Earth's emitted radiation: The Earth absorbs some of the incoming solar radiation and warms up. This warming causes the Earth to emit its own radiation, but at much longer wavelengths, primarily in the infrared region. These are sometimes referred to as "thermal radiation."

Why the difference in wavelength?

The wavelength of radiation emitted by an object is related to its temperature. The sun, being much hotter than Earth, emits radiation with shorter wavelengths. The Earth, being cooler, emits radiation with longer wavelengths.

Το φαινόμενο του θερμοκηπίου:

Certain gases in the atmosphere, like carbon dioxide, methane, and water vapor, are very good at absorbing infrared radiation. These gases act like a blanket, trapping the longer-wavelength radiation emitted by Earth and preventing it from escaping into space. This trapping of heat is what causes the greenhouse effect and contributes to the warming of the planet.