Hotter objects emit shorter wavelength electromagnetic radiation than colder objects.

Question

Quizplus · Accepted Answer

This is known as Wien's Law, which is a fundamental principle in thermodynamics and states that the wavelength of peak emission by a blackbody (an idealized object that absorbs all radiation that falls on it) is proportional to the temperature of the object. Therefore, hotter objects emit shorter wavelengths of electromagnetic radiation than colder ones.

Hotter Objects Emit Shorter Wavelength Electromagnetic Radiation Than Colder Objects