magicgeek481 magicgeek481

04-01-2024
Physics

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A spaceship is approaching Earth with a velocity of 0.09 c, which is 9% of the speed of light. What wavelength will be observed for the first hydrogen Balmer line, with a λ of 656 nm?
A. 599.44 nm
B. 625.84 nm
C. 570.96 nm
D. 531.36 nm

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