An astronomer observes a star whose intensity spectrum peaks at a wavelength of

PHYSICS · Single correct · A Level · Physics · Astrophysics · Astrophysics

Problem

An astronomer observes a star whose intensity spectrum peaks at a wavelength of 290 nm290\,\text{nm}. Using the constant 2.9×10−3 m⋅K2.9\times10^{-3}\,\text{m}\cdot\text{K}, which spectral class is most consistent with the star’s surface properties? (a) B (b) O (c) A (d) G

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