The farthest object in our universe discovered by modem astronomers are so distant that light emitted by them takes billions of years to reach the earth

unitsandmeasurement
cbse

#1

The farthest object in our universe discovered by modem astronomers are so distant that light emitted by them takes billions of years to reach the earth. These objects (known as quasars) have many puzzling features which have not yet been satisfactorily explained. What is the distance in km of a quasar from which light takes 3.0 billion years to reach us ?


#2