The redshift of quasar 3C 273 is z = 0.158. What is the wavelength of the H $\gamma$ line ( $\lambda$ ₀ = 434 nm) in the spectrum of this quasar? A)68.5 nm B)365 nm C)503 nm D)669 nm

Question

Quizplus · Accepted Answer

We use the formula for calculating the observed wavelength of light from a distant source:

observed wavelength = rest wavelength x (1+z)

The rest wavelength of the H γ line is 434 nm. Plugging in the given value of the redshift, we get:

observed wavelength = 434 nm x (1+0.158) = 503 nm

Therefore, the answer is C: 503 nm.

The Redshift of Quasar 3C 273 Is Z = 0 γ\gammaγ

The Redshift of Quasar 3C 273 Is Z = 0 $\gamma$