Answer to Question #169325 in Astronomy | Astrophysics for kaashfi

Question

Using a Hubble constant given by ho = 0.6, place an approximate upper limit on the angular size of a quasar of redshift z = 0.2 if it exhibits a time variability on the scale of I h. (Use the argument that no physical effect travels in a material object faster than light.) 

Answer 1

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