In communication with the help of an antenna, | vedclass

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(A) The range $r$ of an antenna is given by the formula $r = \sqrt{2hR}$,where $h$ is the height of the antenna and $R$ is the radius of the Earth.Ini

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$\sqrt{2} r$

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(A) The range $r$ of an antenna is given by the formula $r = \sqrt{2hR}$,where $h$ is the height of the antenna and $R$ is the radius of the Earth.Initially,the range is $r = \sqrt{2hR}$.If the height is doubled,the new height becomes $h' = 2h$.The new range $r'$ is given by $r' = \sqrt{2h'R}$.Substituting $h' = 2h$ into the equation,we get $r' = \sqrt{2(2h)R} = \sqrt{2} \cdot \sqrt{2hR}$.Since $r = \sqrt{2hR}$,we have $r' = \sqrt{2} r$.

In communication with the help of an antenna,if the height is doubled,then the range covered,which was initially $r$,would become:

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