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A star's peak emission is at 2.9 µm. With Wien's constant 2.9 × 10–3 m K, what is its surface temperature?
A10000 K
B2900 K
C100 K
D1000 K
Answer & Solution
Correct answer: D. 1000 K
T = 2.9 × 10–3 / 2.9 × 10–6 = 1000 K.
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