A particular star is at a distance of about 8.1*10000000000000km from the earth . Assuming that the light travels at 3*100000000 m/sec , find how long does light takes from that star to reach the earth .
Asked by Sanjay | 18th Apr, 2017, 08:07: PM
Expert Answer:
Answered by Rashmi Khot | 19th Apr, 2017, 02:22: PM
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