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CBSE Class 9 Answered

speed
Asked by | 30 May, 2008, 07:04: PM
Expert Answer

Here time takenby the signal to reach earth from moon i.e  t = 1.27sec

speed of radio signal i.e     v = 3 x 108m/s

so distance of moon from earth :

                 d = v x t

                d = 1.27sec x  3 x 108m/s

                d = 1.27 x  3 x 108m.

                 d    = 3.81 x 108m.

regards

toppers expert

Answered by | 03 Jun, 2008, 03:19: PM
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