Two bodies A and B have thermal emissivities 0.01 and 0.81 respectively. The outer surface areas of the two bodies are equal. The bodies emit total radiant power at the same rate. The wavelength \lambda_B for maximum spectral radiancy in B is shifted from thewavelength for maximum spectral radiancy in A by 1.00 μm. The temperature of A is 5802 K.

JEE Advanced Model Paper 20 with solutions for online practice

Question : 43 of 57

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Two bodies A and B have thermal emissivities 0.01 and 0.81 respectively. The outer surface areas of the two bodies are equal. The bodies emit total radiant power at the same rate. The wavelength λB for maximum spectral radiancy in B is shifted from thewavelength for maximum spectral radiancy in A by 1.00 μm. The temperature of A is 5802 K.

The temperature of B is 1934 K
λB = 1.5 µm
The temperature of B is 1160 K
λB = 2.0 µm

Validate

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