The radius of Earth is 6400 km. If the h...

The radius of Earth is 6400 km. If the height of an antenna is 500 m , then its range is

800 km

100 km

80 km

10 km

Text Solution

Verified by Experts

The correct Answer is:

Here,
Radius of the Earth , R = 6400 km `=64xx10^5m`
Height of the antenna , h = 500 m
The range d is
`d=sqrt(2Rh)`
`=sqrt(2(64xx10^5m)(500 m))=sqrt(64xx10^8m^2)`
`=8xx10^4m=80 km`

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