please answer this question and I will mark it as brainliest
step by step
2 no.
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Step-by-step explanation:
Distance of earth = speed*time
=2*10^5*500
= 1*10^8 miles
time took by light to come toearth from proxima century = distance/speed
=2.5*10^13/2*10^5
=1.25*10^8 second
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