Consider two stars in the constellation pasta. alpha tortellini is bright at ultraviolet (uv) wavelenghts and dim in at infrared (ir) wavelengths, while beta ziti is dim in the uv and bright in the ir. which star is hotter?

Beta Ziti is the hotter star.

Infrared is the type of radiation which creates warmth. Atoms and molecules move more and more, and produce infrared radiation, as temperature increases. An object, like a hot clothing iron, which is not hot enough to produce light to the naked eye, emits energy in the infrared.

At the other end of the spectrum is ultraviolet radiation, which is more energetic. It has nothing to do with heat.

radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.

answerinternational border(ib);