A Distant Star Emits Light with a Peak Intensity at 620

question 33

Multiple Choice

A distant star emits light with a peak intensity at 620 nm. If the star is moving toward Earth at 0.024c, what is the wavelength of the peak intensity as measured by an Earth observer?

• A) 605 nm
• B) 591 nm
• C) 650 nm
• D) 635 nm

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