The coolest and dimmest space objects emit radiation of longer wavelengths than those we can see. a detector for which type of electromagnetic radiation is most suitable to study cool dim stars?

1. gamma ray
2. infrared
3. ultraviolet
4. x-rays

A detector for infrared radiation is most suitable to study cool dim stars.

Explanation:

Stars that are cool and dim have been observed to emit infrared radiation. The wavelength of infrared radiation can range from 700 nanometers to 1 millimeter. Radiations with a wavelength as small as this can only be emitted by small, dim and cool stars. Thus, a detector for infrared radiation is most suitable to study cool dim stars.

Answer:   [b]:   "cultural" .