Physics · Thermal Physics

A blackbody radiates at different temperatures listed in List-I. Match each temperature with its most appropriate physical implication in List-II. [Given: Wien's constant b = 2.9 × 10−3 m·K, hce = 1.24 × 10−6 V·m] List-I (Temperature) P. 2500 K Q. 4000 K R. 6000 K S. 12000 K List-II (Physical Interpretation)1. Peak radiation lies in X-ray region and useful for medical imaging2. Peak radiation lies in visible spectrum3. Emitted power per unit area is approximately one-fourth of that at 12000 K4. Peak radiation can eject electrons from a metal of work function 2 eV5. Produces radiation with longest wavelength among the given options