Answer:
9.4608 × 10¹³ seconds.
Explanation:
Data provided:
Distance of Andromeda from Earth = 3 million light years
Now,
3 million light year means that the light will take 3 million years to reach the Earth
also,
in 1 year there are ( 365 × 24 × 60 × 60 ) = 31536000 seconds
therefore,
3 million years in seconds = 3 million × 31536000 seconds
= 3,000,000 × 31536000
= 9.4608 × 10¹³ seconds.
