Physics, 07.03.2020 02:42 roorootx

In hydrogen, the transition from level 2 to level 1 has a rest wavelength of 121.6 nm.1).Find the speed for a star in which this line appears at wavelength 120.4 nm .2）.Find the direction for a star in which this line appears at wavelength 120.4 nm .toward us or away from us?3).Find the speed for a star in which this line appears at wavelength 121.4 nm .4).Find the direction for a star in which this line appears at wavelength 121.4 nm .toward us or away from us?5).Find the speed for a star in which this line appears at wavelength 122.2 nm .6）.Find the direction for a star in which this line appears at wavelength 122.2 nmtoward us or away from us?7).Find the speed for a star in which this line appears at wavelength 122.9 nm .8.Find the direction for a star in which this line appears at wavelength 122.9 nm .toward us or away from us?

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In hydrogen, the transition from level 2 to level 1 has a rest wavelength of 121.6 nm.1).Find the sp...