Question

Q.16 The light emitted by a quasar takes billion of years to reach the
Earth. What is the distance quasar from which light takes 2 billion year to reach the earth​

Answer 1

1. Question⇒  16 The light emitted by a quasar takes billion of years to reach the  Earth. What is the distance quasar from which light takes 2 billion year to reach the earth​.

Explanation:

• distance = speed × time = [ 3×108 m/s ] × [ 2×109×365×24×60×60  ]≈ 1.9 ×1022 km