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)
Options are:-
a) 3.6 X 1055
b) 3.15 X 10'S
c) 3.15 X 10125
d) None of the above

Please give a proper answer or I will report​

Answer 1

Answer:

Answers is

none of above