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A transmitting antenna at the top of a tower has a height of 50 m and the height of the receiving antenna is 32 m. What is the maximum distance between them for satisfactory communication in line of sight mode ?
(Radius of the earth (R ) =`6.4xx10^6` m) (`sqrt10`=3.16)

A

`75.5` km

B

`65. 5` m

C

`55. 5` km

D

`45. 5 ` km

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The correct Answer is:
D
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