Question
The farthest objects (known as quasers) in our universe are so distant that light emitted by them takes billion of years to reach the earth. What is the distance in km of a quaser from which light takes 3.0 billion years to reach us ?
Options :
4.84 x 10²² km
7.84 x 10²² km
3.84 x 10²² km
2.84 x 10²² km
Answer :
2.84 x 10²² km
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