A stellar object is emitting radiation at 1870 nm a what, Ask an Expert

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A stellar object is emitting radiation at 1870 nm. (a) What type of electromagnetic spectrum is this radiation? microwave ultraviolet infrared x-ray (b) If the detector is capturing 8. 107 photons per second at this wavelength, what is the total energy of the photons detected in one hour? 8.20e12 J/hr

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