Question

Which of the following is the v_m-T graph for a perfectly black body

• A. A
• B. B
• C. C
• D. D

Answer 1

Answer: (B)

B

Answer 2

Wien's law $\lambda_{m} \propto \frac{1}{T}$ or $\nu_{m} \propto T$

ν_m increases with temperature. So the graph will be straight line.