Question

If a star 100 light years away explodes now, it will be visible to us after (Assume speed of light to be 3x10⁵ km/s)

3.6 X 10⁵ s

3.15 X 10⁹ s

3.15 X 10¹² s

None of the above​

Answer 1

Answer:

b) 3.15 X 10⁹ s

Step-by-step explanation:

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