The distance of a star from the Earth is 8. 33 light minutes what do you mean by this statement Express the distance in metre​

Answers (1)

The statement 'The distance of a star from the earth is 8.33 light minutes' means that the light from the
star takes 8.33 minutes to reach earth.
Given
Speed of light $=3 \times 10^{8} \mathrm{m} / \mathrm{s}$
Distance covered in $1 \mathrm{sec}=3 \times 10^{8}$ \ m
Time taken $=8.33 \mathrm{min}=8.33 \times 60 \mathrm{s}$
Distance $=\operatorname{speed} \times \operatorname{time}=3 \times 10^{8} \times 8.33 \times 60=1.5 \times 10^{11} \mathrm{m}$

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