The star Sirius is about 8.1 *10^13 km from the earth. Assuming that light travels at 3.0 *10^5 km per second, find how long light from Sirius takes to reach the earth.
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Answered by
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Hey Dear,
◆ Answer -
Time = 8.556 years
● Explaination -
# Given -
Distance, s = 8.1×10^13 km
Speed, c = 3×10^5 km/s
# Solution -
Time taken by light from Sirius to reach earth is calculated by -
Time = distance / velocity
t = s / c
t = 8.1×10^13 / 3×10^5
t = 2.7×10^8 s
Let's convert it into years -
t = 2.7×10^8 / 31536000
t = 8.556 years
Therefore, 8.56 years will be taken by light from Sirius to reach earth.
Thanks for asking, friend.
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