Question

an idealized object that does not reflect or scatter any radiation that hits it, but simply absorbs every bit of radiation that falls on it, is called a doppler surface. an electromagnetic radiator. a wien object. a blackbody. a spectrum.

Explanation:

A black - body is defined as an idealized object that absorbs all incident radiation without reflecting or scattering it. The other options do not match this definition. A Doppler surface is related to the Doppler effect, an electromagnetic radiator emits radiation rather than just absorbing, a Wien object is not a standard term for this concept, and a spectrum is a range of wavelengths or frequencies.

Answer:

a blackbody.