Stars and SOLAR SYSTEM
01.Calculate the time taken by light to reach earth, if speed of leb
distance between earth and moon is 15*10m?
3*109 ms' and
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Answer:
Speed of light is 3 x 10^5 km. Thus time taken by light when the Earth is at apogee =(Distance from apogee)/3 x 10^5=507 s=8 min 27 sec. Time taken by light when the Earth is at perigee =(Distance from perigee)/3 x 10^5=490 s=8 min 10 sec.
Explanation:
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