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$(8)$ Question: if star A emits energy at a wavelength of $210{?}^{{?}^{?}}(-12)m$ and star $B$ emits energy at a wavelength of $1x{10}^{-12}m$ which is the hottest?

if star A emits energy at a wavelength of $2{10}^{-12}m$ and star $B$ emits energy at a wavelength of $1{10}^{-12}m$ which is the hottest?

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