Object A has a peak-emission wavelength of 550 nm

PHYSICS · Single correct · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

Object A has a peak-emission wavelength of 550 nm. Object B has a peak-emission frequency of 1.2×1014 Hz1.2\times10^{14}\,\text{Hz} (take the speed of light to be 3.0×108 m/s3.0\times10^{8}\,\text{m/s}). Which option best describes the ratio of their temperatures? (a) TAT_A is about 2.62.6 times TBT_B. (b) TAT_A is about 0.220.22 times TBT_B. (c) TAT_A is about 4.54.5 times TBT_B. (d) TAT_A is about 99 times TBT_B.

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