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In communication with help of antenna if...

In communication with help of antenna if height is doubled then the range covered which gas initially r would become

A

`sqrt2 r`

B

3r

C

4r

D

5r

Text Solution

Verified by Experts

The correct Answer is:
A
Initial Range `r=sqrt(2Rh)`
where R is the radius of the earth .
New range `r=sqrt(2 R (2 h)) =sqrt2 (2Rh)=sqrt2 r`
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