Suppose you were far from a planet that had a very strong gravitational field, and an emission line spectrum source on the surface of the planet. when you observe a similar source in your own spaceship, the wavelength of the light is 656.3 nm. what wavelength do you see when you look at the light source on the planet?

Question

Christina Nichols

Physics

9 July, 22:38

Suppose you were far from a planet that had a very strong gravitational field, and an emission line spectrum source on the surface of the planet. when you observe a similar source in your own spaceship, the wavelength of the light is 656.3 nm. what wavelength do you see when you look at the light source on the planet?

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Jaylen Hensley · Answer 1

The answer would be it will be longer than the 656.3 nm. The reduced mass of positronium is less than hydrogen so the photon energy will be a reduced amount of for positronium than for hydrogen. So this will mean that the wavelength will be lengthier.