Physics, asked by Anonymous, 10 months ago

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Answered by tushardey101

1

Answer:

300km = 300000m

total distance = 300000×2 (as it returns)

= 600000

now,

time taken to travel 600000m = 600000/3×10^8

= 600000/300000000

= 2/1000

= 2/10³s

hence, option (d)

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