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30 September, 01:34

A spectroscope or a spectrometer is an instrument which is used for separating the components of light into different

wavelengths. Astronomers often use spectroscopes and the resulting emission spectra to

identify elements found in distant stars.

determine how fast an object is moving.

determine relative distances in space,

D)

identity dark matter and black holes

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  1. 30 September, 01:50
    0
    the answer is b
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